-- Our school bus will leave at 8 o'clock tomorrow. Don't be late.
-- OK. I will be there ten minutes________.
| A．sooner | B．slower |
| C．faster | D．earlier |
—Most paper is made________wood．
—Yeah．But most books are made________paper．
| A．of；of |
| B．from；from |
| C．of；from |
| D．from；of |
Many overseas Chinese look forward to________more about their roots in the summer camp．
| A．learn |
| B．be learning |
| C．learning |
| D．be learned |
—Where did you get these old doors?
—From the old houses which were________by the workers．
| A．taken down |
| B．pulled down |
| C．turned down |
| D．put down |
Things should________here before you enter the Great Museum．
| A．keeps |
| B．keep |
| C．be kept |
| D．are kept |
—There are only a few old city walls left．
—Yeah．Most of them________in the 1960s．
| A．pulled down |
| B．have pulled down |
| C．had pulled down |
| D．were pulled down |