内容正文:
Book 2 Unit 1 The mass media
Grammar
练习
一、用所给动词的适当形式填空
1. It took me a long time before I was able to fully appreciate what they _________(do) for me.
2. - Peter, where did you guys go for the summer vacation?
- We _________ (be) busy with our work for months, so we went to the beach to relax ourselves.
3. By the time Jack returned home from England, his son _________ (graduate) from college.
4. Experiments of this kind _________ (conduct) in both the US and Europe well before the Second World War.
5. We found that the least well-liked teens _________ (become) more aggressive over time towards their classmates.
6. As soon as he saw the photos, he realized why he _________ (fail) to spot the caldera.
7. It was the last time that he _________ (meet) his father.
8. He said on the phone that he _________ (arrive) in London.
9.Joseph Pulitzer ___________(bear) on April 10, 1847, in Hungary.
10.He became an American citizen in 1860s. By then he ___________(learn) very little English.
11.Pul