.
—May I remind you that a Mr. Zhang is waiting downstairs, sir?
—Oh, dear. I ________ about it.
| A．forget | B．forgot | C．have forgotten | D．had forgotten |
The students expected there ____more reviewing classes before the final exams.
| A．to be | B．are | C．being | D．is |
Such things ___ you described in the report seldom happen now.
| A．that | B．who | C．as | D．which |
At present, how we can look after ______ old is becoming ______ hot and severe issue.
| A．the, a | B．a, the | C．a, a | D．the, the |
It is the duty of the police to ______ social order.
| A．deserve | B．reserve | C．preserve | D．conserve |
If children are asked to help with housework, they will feel needed. ______, they will learn to take care of themselves.
| A．On the contrary | B．In a word | C．That is to say | D．What’s more |