---I’d like to book a room for tonight.
---Sorry, sir, but we don’t have any rooms ________ at the moment.
| A．available | B．usable | C．suitable | D．comfortable. |
The United Nations are evaluating the damage caused in Haiti earthquake, while in Chile the government itself ______ the lead role．
| A．is taking | B．was taking | C．took | D．had taken |
Put yourself in situations where you're forced to communicate in English, ______ you'll see more progress over time.
| A．until | B．or | C．but | D．and |
Tom's mother kept telling him that he should work harder, but ______didn't help．
| A．he | B．which | C．it | D．one |
As Susan stared at ______ piles of plastic in her recycling bin, ______ strong sense of responsibility made her stick to her recycling work.
| A．不填；不填 | B．不填; a | C．the ; a | D．the; the |
—Fancy meeting you here at this time!
—
| A．Glad to see you. | B．It's a small world |
| C．So did I. | D．Oh, haven't you? |