2. The book is quite long but, nonetheless, (inform) (a)   and entertaining.

3. The (predict) (a)   weather in the mountains can make climbing extremely dangerous.

4. She used to work as a (serve) (a)   to the Smith family 10 years ago.

5. It is (use) ............... trying to convince my grandmother to move to the city. She is used to (live) ............ in the countryside.

(sử dụng dấu gạch nối giữa hai đáp án. Ví dụ: go-take)

(a)  

6. I had my motorbike (wash) (a)   last weekend.

7. It’s high time you (get) (a)   married. You’re over 30!

8. He would be healthier if he (not/ smoke) (a)   so much.

9. Mary had some difficulty (understand) (a)   the lesson.

10. Nowadays, a large number of students haven’t known how to study (effect) (a)