You _____ him the news; he knew it already.
| A．needn’t tell | B．needn’t have told |
| C．mightn’t tell | D．mightn’t have told |
—Have you decided where to spend your summer holiday?
—Not yet. We _________ go to Qingdao.
| A．must | B．should | C．need | D．may |
_____ people are waiting to watch the raising of the national flag at Tian’an Men Square.
| A．Hundred | B．Thousand | C．Two hundreds | D．Thousands of |
The new library building _____ last week.
| A．was completed | B．is completed | C．completed | D．has completed |
—Did you call Sara back?
—I didn’t need to, _____ we’ll have a meeting together tonight.
| A．though | B．unless | C．because | D．if |
Keep practicing and you _____ your English.
| A．improve | B．will improve | C．improved | D．were improving |