Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China．
| A．would be | B．would have been |
| C．might be | D．should have been |
—Look! The telephone is broken. Someone damaged it ________ purpose.
—That may be right. But perhaps it was broken ________ accident.
| A．on; by | B．by; by |
| C．on; on | D．by; on |
It's so nice to hear from her again.________，we last met more than fifteen years ago.
| A．What's more | B．That's to say |
| C．In other words | D．Believe it or not |
Mr White ________ at 8:30 for the meeting, but he didn’t show up.
| A．should have arrived | B．should arrive |
| C．should be arriving | D．arrived |
The old temple, _______ roof was damaged in the storm, is now under repair.
| A．where | B．which | C．its | D．whose |
There was ______ time ______ I hated to go to school.
| A．a; that | B．the; that |
| C．a; when | D．the; when |