use of gerunds

Is it possible to transportmachines by plane?
Yes, transporting machines by plane is possible.
Is possible
it to booktickets in advance?

Yes, booking tickets in advance is possible?

Can be
it confortable to sleep in a tent?


Yes, sleeping in a tent ...




Is safe to
it cross the street?

the street here
Yes, crossing ...




Does interestyou
it to talkabout politics?
No, talking ...




Does it sound reasonable to accept his offer?

his offer sounds...
Yes, accepting


HW:

Do food?
you waste
No, wasting food isn'tgood for the invironment