Question

16. It takes me two hours (do)………………………………….my homework.

17. She spends 5 minutes (wash)…………………………………her face every day.

18. If I were you, I (help)………………………………her.

19. (Swim)…………………………………….is good for you.

20. It’s necessary (keep)…………………………………..fit.

Answer 1

1. to do

it+ take+ somebody+ time+ to_inf

2. washing

S+ spend+ time+ V_ing

3. would help

Câu điều kiện loại 2: If + S+ Ved/V2, S+ would/could/should+ Vbare

                                           be-> were 

4.Swimming

đứng đầu câu làm chủ ngữ động từ thêm đuôi ing

5. to keep