----I’m sorry, but there is no smoking on this flight. ----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |
We _______what our soldiers have done for our country.
| A．proud of | B．are pride of |
| C．take pride in | D．take pride of |
They are fighting ________us _________the enemy
| A．with; against | B．for; against |
| C．with; for | D．with; at |
She’s having a lot of trouble with the new computer, but she doesn’t know whom to ________.
| A．turn to | B．look for |
| C．deal with | D．talk about |
Tom is good at maths, so I think he is the student ______can help you to work out this problem.
| A．whom | B．who | C．which | D．what . |
This girl is familiar to me; maybe she is the girl ______I met in the street yesterday.
| A．whom | B．which | C．as | D．what |