________ playing chess after school？
| A．Let’s | B．What about |
| C．Why not | D．Don’t |
Please stop________a noise in the classroom．I can’t stand it．
| A．make |
| B．to make |
| C．making |
| D．made |
________should not be allowed to go out at night．
| A．Twelve-years-old |
| B．Twelve-year-olds |
| C．Twelve year old |
| D．Twelve years olds |
—Do you believe there are aliens？
—I’m afraid not．I don’t think aliens________in space．
A．can find
B．can be found
C．can’t be found
This kind of bicycle________in Tianjin．
| A．is made |
| B．are made |
| C．made |
| D．makes |
I can’t hear you．Would you please speaK________？
| A．clearly enough |
| B．clear enough |
| C．enough clear |
| D．enough clearly |