---This is my sister Ann. ---Is _____ a student?
—Wow, your hair is so long. Why not have it _________ now?—OK, I’ll do it right now.
—Do you have difficulty _________ ready for the exam ?—No, I have made a decision _________ over lessons this weekend.
Don’t go swimming alone, _________ you will be in great danger.
—Peter, do you know if David _________us in the fashion show this Sunday?—I’m sure if he _________his homework, he will join us.
I’m _________building a new zoo because I think zoos are terrible places for animals to live in.