16. Let's watch a movie----------------is a good idea. A.this. B.that. C.those 17.how much are-----------shoes A.that. B.this. C.those 18. I like that skirt .do you have --------- in black ? A.it B.them. C.those 19.Do you have ---------shoes in black ? A.this. B.these. C.that. 20.I like these shorts. Can I try --------on A.they. B.it. C.them