Ⅰ. 用括号内单词的适当形式填空
1. Now we are living in the rapidly(rapid) changing world of technology.
2. Here are several reference(refer) books for you to choose from.
3. I attempted(attempt)to get in touch with her, but failed.
4. There has been no formal announcement(announce) by either government.
5. Materials about recent research added(add) to this new edition have attracted many readers.
6. The President made an unexpected announcement (announce) this morning.
7. Mr Smith was presented(present) with a watch by the boss for his years’ hard work.
8. The English in this story has been simplified(simple) to make it easier to understand.
9. I went to the bookstore yesterday and bought a reference(refer) book.
10. The firm is working on a new product in combination(combine) with several overseas partners.
