ACT OFFICIAL EXAM PREP 2026–2027
Complete Review Guide Featuring
Practice Tests, Verified Solutions, Study
Notes & High Score Success
Directions: In the passages that follow, certain words and phrases are
underlined and numbered. In the right-hand column, you will find alternatives
for each underlined part. Choose the alternative that best expresses the idea,
makes the statement appropriate for standard written English, or is worded
most consistently with the style and tone of the passage.
PASSAGE I
The art of paper folding, known as origami, (1) have fascinated people for
centuries. Originating in Japan, this intricate craft (2) has transformed simple
sheets of paper into complex sculptures. (3) Despite its ancient roots, origami
has found modern applications in fields as diverse as medicine, architecture,
and space exploration.
(1)
A. have fascinated
B. has fascinated
C. is fascinating
D. fascinate
(2)
A. NO CHANGE
B. transforms
C. transforming
D. has been transformed
(3)
A. NO CHANGE
B. Although
,C. Because
D. Since
(4) The basic principle of origami remains remarkably simple: a single square
of paper, folded without cutting or gluing, can become (5) virtually anything.
From the classic paper crane to (6) intricate dragons, the possibilities appear
endless. The mathematical principles underlying origami have (7) lead to
breakthroughs in how scientists understand folding patterns in nature.
(4)
A. NO CHANGE
B. The basic principle of origami remains, remarkably simple
C. The basic principle, of origami remains remarkably simple
D. The basic principle of origami remains remarkably simple;
(5)
A. NO CHANGE
B. almost
C. nearly
D. practically
(6)
A. NO CHANGE
B. intricate dragons the possibilities
C. intricate dragons, the possibilities,
D. intricate dragons; the possibilities
(7)
A. NO CHANGE
B. led
C. leaded
D. leading
(8) One of the most remarkable applications of origami involves the
development of (9) stents—small mesh tubes used to prop open blocked
arteries. Engineers have designed stents that (10) unfolds like origami
structures, allowing them to be inserted in a compact form and expanded once
in place.
,(8)
A. NO CHANGE
B. One of the most remarkable, applications of origami
C. One of the most remarkable applications, of origami
D. One of the most remarkable applications of origami,
(9)
A. NO CHANGE
B. stents: small
C. stents small
D. stents, small
(10)
A. NO CHANGE
B. unfold
C. unfolded
D. unfolding
(11) Origami has also influenced the design of solar panels for space satellites.
(12) These panels must be compact during launch and then expand to their
full size once in orbit. (13) Folding patterns inspired by origami enable this
(14) expansion efficiently and reliably.
(11)
A. NO CHANGE
B. Origami, has also influenced
C. Origami has also, influenced
D. Origami has also influenced,
(12)
A. NO CHANGE
B. The panels
C. Those panels
D. These, panels
(13)
A. NO CHANGE
B. Folding patterns, inspired by origami,
, C. Folding patterns inspired, by origami,
D. Folding patterns inspired by origami
(14)
A. NO CHANGE
B. expansion, efficiently and reliably
C. expansion efficiently, and reliably
D. expansion efficiently and reliably,
The art of origami (15) demonstrates how a traditional practice can
contribute to cutting-edge technology. As researchers continue to explore the
possibilities, (16) new applications are being discovered regularly. The
ancient art of paper folding (17) have proven to be far more than a simple
pastime; it has become a source of (18) inspiration for solving some of the
most challenging problems of our time.
(15)
A. NO CHANGE
B. demonstrates, how a traditional practice
C. demonstrates how a traditional practice,
D. demonstrates how, a traditional practice
(16)
A. NO CHANGE
B. they discover new applications regularly
C. new applications discovered regularly
D. discovering new applications regularly
(17)
A. NO CHANGE
B. has
C. is
D. was
(18)
A. NO CHANGE
B. inspiration, for solving
C. inspiration for solving,
D. inspiration for; solving
Complete Review Guide Featuring
Practice Tests, Verified Solutions, Study
Notes & High Score Success
Directions: In the passages that follow, certain words and phrases are
underlined and numbered. In the right-hand column, you will find alternatives
for each underlined part. Choose the alternative that best expresses the idea,
makes the statement appropriate for standard written English, or is worded
most consistently with the style and tone of the passage.
PASSAGE I
The art of paper folding, known as origami, (1) have fascinated people for
centuries. Originating in Japan, this intricate craft (2) has transformed simple
sheets of paper into complex sculptures. (3) Despite its ancient roots, origami
has found modern applications in fields as diverse as medicine, architecture,
and space exploration.
(1)
A. have fascinated
B. has fascinated
C. is fascinating
D. fascinate
(2)
A. NO CHANGE
B. transforms
C. transforming
D. has been transformed
(3)
A. NO CHANGE
B. Although
,C. Because
D. Since
(4) The basic principle of origami remains remarkably simple: a single square
of paper, folded without cutting or gluing, can become (5) virtually anything.
From the classic paper crane to (6) intricate dragons, the possibilities appear
endless. The mathematical principles underlying origami have (7) lead to
breakthroughs in how scientists understand folding patterns in nature.
(4)
A. NO CHANGE
B. The basic principle of origami remains, remarkably simple
C. The basic principle, of origami remains remarkably simple
D. The basic principle of origami remains remarkably simple;
(5)
A. NO CHANGE
B. almost
C. nearly
D. practically
(6)
A. NO CHANGE
B. intricate dragons the possibilities
C. intricate dragons, the possibilities,
D. intricate dragons; the possibilities
(7)
A. NO CHANGE
B. led
C. leaded
D. leading
(8) One of the most remarkable applications of origami involves the
development of (9) stents—small mesh tubes used to prop open blocked
arteries. Engineers have designed stents that (10) unfolds like origami
structures, allowing them to be inserted in a compact form and expanded once
in place.
,(8)
A. NO CHANGE
B. One of the most remarkable, applications of origami
C. One of the most remarkable applications, of origami
D. One of the most remarkable applications of origami,
(9)
A. NO CHANGE
B. stents: small
C. stents small
D. stents, small
(10)
A. NO CHANGE
B. unfold
C. unfolded
D. unfolding
(11) Origami has also influenced the design of solar panels for space satellites.
(12) These panels must be compact during launch and then expand to their
full size once in orbit. (13) Folding patterns inspired by origami enable this
(14) expansion efficiently and reliably.
(11)
A. NO CHANGE
B. Origami, has also influenced
C. Origami has also, influenced
D. Origami has also influenced,
(12)
A. NO CHANGE
B. The panels
C. Those panels
D. These, panels
(13)
A. NO CHANGE
B. Folding patterns, inspired by origami,
, C. Folding patterns inspired, by origami,
D. Folding patterns inspired by origami
(14)
A. NO CHANGE
B. expansion, efficiently and reliably
C. expansion efficiently, and reliably
D. expansion efficiently and reliably,
The art of origami (15) demonstrates how a traditional practice can
contribute to cutting-edge technology. As researchers continue to explore the
possibilities, (16) new applications are being discovered regularly. The
ancient art of paper folding (17) have proven to be far more than a simple
pastime; it has become a source of (18) inspiration for solving some of the
most challenging problems of our time.
(15)
A. NO CHANGE
B. demonstrates, how a traditional practice
C. demonstrates how a traditional practice,
D. demonstrates how, a traditional practice
(16)
A. NO CHANGE
B. they discover new applications regularly
C. new applications discovered regularly
D. discovering new applications regularly
(17)
A. NO CHANGE
B. has
C. is
D. was
(18)
A. NO CHANGE
B. inspiration, for solving
C. inspiration for solving,
D. inspiration for; solving
