——Must I leave the room now?
——No，you .
| A．needn’t | B．can’t | C．mustn’t | D．couldn’t |
－Why are there a lot of dead fish in the river?
－Because they were ______ by the polluted water.
| A．caught | B．poisoned | C．burned | D．protected |
－ Thank you so much for the gift.
－_______.
| A．It’s not good | B．Don’t say so | C．I’m glad you like it | D．No, thanks |
_______ points you get, _______ levels you’ll go to.
| A．More; higher | B．The more; the higher | C．Much; high | D．The more; higher |
Boys, don’t stop-please _______ with your work.
| A．carry on | B．get on | C．turn on | D．work on |
－ Can you help me clean the room?
－ OK, _______ I have to wash the clothes first.
| A．so | B．but | C．because | D．as |