16. Why not _______your best _______ people in need?
A. to try; to help B. try; help C. try; helping D. try; to help
( )17. We didn't have enough money for the movie, so we went to the park _______.
A. instead of B. instead C. in fact D. ever
( )18. - Have you finished your fashion design?
- Not yet. I'll finish it if I _______ ten more minutes.
A. am given B. give C. will give D.