—Always look around________you cross the street，David．
—OK，I know，Mom．
A．until
B．before
C．unless
―Did you see Mr. Li when you were in France?
―No, when I ______, he ______ to Canada.
| A．arrived, had gone | B．had arrived, went |
| C．got, had gone | D．reached, would go |
Look! The reporters are covering these lively actresses’ wonderful performance_______.
| A．alive | B．live | C．lively | D．living |
While I_______ a detective story, someone_______ at the door．
| A．read, was knocking |
| B．read, knocked |
| C．was reading, knocked |
| D．was reading, was knocking |
The teacher didn’t leave the classroom building until the papers _________ in the end.
| A．was put off | B．was put out |
| C．were put on | D．were put away |
His sister wanted to have him _____ the radio, but he had had it _____ already.
| A．repair, fix | B．to repair, fix |
| C．repaired, to fix | D．repair, fixed |