Only when he reached the tea-house ______ it was the same place he’d been in last year.
| A．he realized | B．he did realize |
| C．realized he | D．did he realize |
He said he would keep________the school rules and keep________smoking.
| A．up; down |
| B．from; to |
| C．out; away from |
| D．to; off |
One of the advantages of living on top floor of a high rise is that you can get a good________.
| A．sight |
| B．scene |
| C．view |
| D．look |
In the meantime, the question facing business is whether such research is________the costs.
| A．valuable |
| B．worth of |
| C．worthy of |
| D．worthwhile |
________some of this juice—perhaps you'll like it.
| A．Trying |
| B．Try |
| C．To try |
| D．Have try |
—Write to me when you get home.
—________.
| A．I must |
| B．I should |
| C．I will |
| D．I can |