252. My little brother _________ the Young Pioneer Team last year.
| A．took part in | B．attended | C．joined | D．Accepted |
—What shall we do tonight then?
___ —whatever you want
| A．Help yourself |
| B．It’s a deal |
| C．No problem |
| D．It’s up to you |
Only when your identity has been checked ___.
| A．you’re allowed in |
| B．you’ll be allowed in |
| C．will you allow in |
| D．will you be allowed in |
The computer was used in teaching. As a result, not only ___, but students became more interested in the lessons.
| A．saved was teachers’ energy |
| B．was teachers’ energy was saved |
| C．teachers’ energy was saved |
| D．was saved teachers’ energy |
In such a hurry ___ to the railway station that they left their tickets behind at home.
| A．had they gone |
| B．did they go |
| C．they had gone |
| D．they went |
Not until quite recently ___ that language is closely related to culture.
| A．he realized |
| B．did he realize |
| C．had he realize |
| D．have you passed; you will |