Nick，it’s good for you to read some books ________ China before you start your trip there.
| A．in | B．for |
| C．of | D．on |
_____ we were singing, the teacher came in.
| A．Before | B．after | C．As | D．Until |
You like sports_____I’d like to read.
| A．when | B．while | C．but | D．yet |
The hard he works, _____he will make.
| A．the greater | B．the greater progress |
| C．and the more | D．more |
Work hard _____ you can succeed.
| A．in order to | B．so that | C．for fear that | D．in case |
_____ we were singing, the teacher came in.
| A．Before | B．after | C．As | D．Until |