问题
填空题
| 用should/could 的适当形式填空。 |
| 1. If you want better grades , you ______________ watch TV too much. 2. I don't know how to get to the school. What ____________ I do? 3. -_____________ I use your phone? -Sure. 4. Bill ____________ play the guitar last year, but now he plays it very well. 5. We ____________ give the book to the library on time(按时). |
答案
1. shouldn't 2. should 3. Could 4. couldn't 5. should