1.
a. Air conditioner.
b. Electric oven.
c. Vacuum cleaner.
d. Dishwasher.
2.
a. Electric oven.
b. Dishwasher.
c. Air conditioner.
d. Electric mixer.
e. Vacuum cleaner.
3.
a. David and Joe are studying maths at this moment.
b. The students are having an English test right now.
c. My sister is taking a walk in the park.
d. The chef is using the electric mixer to prepare a special dish.
e. My family and I are not eating dinner outside
4.
a. Where is David walking now?
He is walking in the park.
b. What is Camille doing this morning?
She is riding her bike.
c. What is Anna washing?
She is washing her clothes.
d. What is Joe doing right now?
He is studying maths right now.
e. What is Peter cleaning?
He is cleaning his room.
5.
a. Happily.
b. Beautifully.
c. Carefully.
d. Slowly.
e. Clearly.