— It’s the office! So you ______ know eating is not allowed here.
— Oh, sorry.
| A．must | B．will | C．may | D．need |
One-third of the area _____ covered with trees. About seventy percent of the trees _____ been planted recently.
| A．is; have | B．is; has |
| C．are; have | D．are; has |
Allow children the space to voice their opinions, _____they are different from your own.
| A．as if | B．even if |
| C．in order to | D．so that |
I have _____ my husband again and again not to smoke, but I can’t _____him.
| A．persuaded; advise | B．advised; persuade |
| C．suggested; persuade | D．suggested; advise |
I want to know when he _____ for New York tomorrow.
| A．has left | B．is leaving |
| C．had left | D．has been leaving |
After he had been hit by many hardships and failures, the young man _____ at last.
| A．gave out | B．gave away |
| C．gave in | D．gave off |