【正文】
er. A. has to B. may C. mustn’t D. needn’t II. 根據(jù)句意及首字母提示補全單詞 1. E_____ a child can understand this easy question. 2. The road is d _____ for playing football. 3. D the summer holiday I went to the seaside. 4. I know who I _____ electric lights] 5. Yesterday I r____ my bike to the park . 6. Today the train goes at a r_____ speed. 7. What t_____ of transportation do you prefer? 8. A bike has two w______. 9. A bird flies with w_______. 10. Now there are man y f______ to make cars. III. 用所給詞的適當形式填空 . 1. When was the modern bicycle