—________do you go roller skating?
—About twice a week.
| A．How far | B．How long |
| C．How often | D．When |
—Will you stay here for supper？
—Sorry，I ________．I’ll have to meet my uncle at the station．
| A．mustn’t |
| B．can’t |
| C．needn’t |
| D．don’t |
—Please ________ to return my book by Friday．I’ll use it on Saturday．
—No problem．I’ll finish reading it on Thursday．
| A．don’t forget |
| B．not to forget |
| C．not forget |
| D．forget not to |
—Don’t take pictures here，please．
—________．
| A．No way |
| B．Sorry，I won’t |
| C．Here you are |
| D．It’s a pleasure |
If we see the sign“________”in public，we can’t park our cars there．
A． |
B． |
C． |
D． |
—Wow！What a ________ park！You can hardly hear the traffic！
—Yes，and no one is shouting．
| A．noisy |
| B．busy |
| C．crowded |
| D．quiet |