—Do you have enough men to carry these chairs?—No. I think we need _______ men.
In the past the children were made ______15 hours a day.
When I got to school, Amy ______his homework.
Did you see Peter and Mike? No, I saw ______of them.
Gina loves singers _______ write their own music. A. which B. who C. has worked
Jim _________ in Zhuzhou since he finished his college. A. works B. is working C. has worked