1 . Fill in the blanks in the right form with the given verbs.
1. This time last year, the bridge _________ (build).
2. To our surprise, this kind of shoes _________ (sell) well.
3. It _________ (rain) for a week; when will it stop?
4. Great changes _________ (take place) in my hometown in the past few years.
5. By the time Juan gets home, his father _________ (leave) for London.
6. This is the second time you _________ (ask) to give a lecture.
7. When Li Ming hurried home,   he found that his mother _________ (not send) to hospital yet.
8. Don’t delay! Tack _________ (wait) for you anxiously at the moment.
9. At this time tomorrow the doctor _________ (operate) on a patient.
10. I am not used to _________ (treat) like this.

2 . For English learners, there’s no doubt that China Daily is well worth______ (read). (所给词的适当形式填空)

3 . Standing on the top of the mountain, he found the air was fresh ________(breath). （所给词的适当形式填空）

4 . But this friendship is worth _________(save) : eight years is a long time.(所给词的适当形式填空)

6 . The knife needs ________ (sharp). （所给单词适当形式填空）

7 . The text is too difficult. The explanation of our teacher will help make it easy _______(understand). (所给词的正确形式填空)

8 . The classic books are well worth________ (read) over and over again. （所给词的适当形式填空）

9 . To our surprise, this kind of shoes ________ (sell) well.(所给词的适当形式填空）

10 . Before we get further into this subject, several basic concepts (概念) need ______ (clarify). （所给词的适当形式填空）