2 . By the time he arrives, all the work________(complete), with which our teacher will be satisfied. (用所给词的适当形式填空)

3 . By the end of this year, the new buildings for the Olympic Games _______ (complete). (所给词的适当形式填空)

4 . Our boss is said to come back next week, ________ (那个时候我们的任务就完成了). （根据汉语提示完成句子）

5 . As many as ten million children will have been____________ (infect) with the virus by the end of the decade. （所给词的适当形式填空）

7 . 单句语法填空
1. Every possible method ____________ (use) to prevent the air pollution, but the sky is still not so clear as before.
2. Within 10 years’ time, I believe you’ll be using technology that ____________ (not invent) yet.
3. How many new words ____________ (learn) by the students recently?
4. Though she ____________ (warn) many times, I’m not sure if she can avoid such mistakes this time.
5. The means of online shopping ____________ (accept) by most consumers in recent years.
6. In the last few years, thousands of films ____________ (produce) all over the world.
7. So far the book ____________ (read) twice, but he still can’t understand it.
8. Great damage ____________ (cause) by storms which swept across the south of China this summer.