Choose the correct answer.
Choose: Can/ Can’t, Could/ Couldn’t, Must/ Mustn’t.
1. You ____ must_____ work harder if you want to pass the exam.
2. I don’t want anyone to know. You ________ tell anyone.
3. _________ you please open the door? 
4. _________ I go out tonight? No, you _________ study English.
5. We haven’t got much time. We ________ hurry.
6. He _________ play tennis very well now but he _________ play really well when
he was young.
7. Tom _________ drive but he hasn’t got a car.
8. The boy fell into the river but fortunately we _________ rescue him.
9. We haven’t got enough food at home so we _________ go shopping today.
10. She wasn’t at home when I phoned but I _________ contact her at her office.
11. I can’t stay in bed tomorrow morning because I ________ work. AI NHANH TUI TICK NHA

1. Please let us know if the teacher.......................(will come, coming, comes, came)

2. If you.............to pass the exam, you should try harder. (wanted, want, will want, would want)

3. I.......................to Lan’s birthday if she invites me. (go, will go, went, are going)

4. They have to ask for their parents’ permission if they.........................out after school. (go, will go, went, are going)

5. If Lan.............to lose some weight, she must do more exercises. (wanted, wants, want, will want)

6. If it....................tomorrow, we won’t go on a camping trip. (will rain, rains, rain, would rain)

7. If the teacher.............us some homework, we have to stay home and do it.

(gives, give, will give, gave)

8. If they study hard, they........................the final exam. (will pass, would pass, passing, passed)

I. Choose the best words in brackets

1. Please let us know if the teacher.......................(will come, coming, comes, came)

2. If you.............to pass the exam, you should try harder. (wanted, want, will want, would want)

3. I.......................to Lan’s birthday if she invites me. (go, will go, went, are going)

4. They have to ask for their parents’ permission if they.........................out after school. (go, will go, went, are going)

5. If Lan.............to lose some weight, she must do more exercises. (wanted, wants, want, will want)

6. If it....................tomorrow, we won’t go on a camping trip. (will rain, rains, rain, would rain)

7. If the teacher.............us some homework, we have to stay home and do it.

(gives, give, will give, gave)

8. If they study hard, they........................the final exam. (will pass, would pass, passing, passed)

Bài 2. Điền could/ couldn’t hoặc will/ won’t be able to vào chỗ trống thích hợp.

1. I _______________   read at just the age of 4.

2. Yesterday my father _______________ go to work because he was ill.

3. If you don’t review your lesson tonight, you _______________ pass the test.

4. I am too busy with my housework, I _______________ meet you now.

5. Robots of the future _______________ cook our food or even run our cars. 

giúp tôi với,mai tôi thi rồiT-T

"You’d better work harder if you don’t want to retake the exam!” the teacher said to Jimmy.

A. The teacher advised Jimmy to work harder if he didn't want to retake the exam. 

B. The teacher ordered Jimmy to work harder if he didn't want to retake the exam. 

C. The teacher reminded Jimmy to work harder if he didn't want to retake the exam. 

D. The teacher warned Jimmy to work harder if he didn't want to retake the exam.

Complete the sentences, using the modal verbs in brackets and the information in the box.

a. stay in bed

b. study harder

c. give you a lift

d. help you carry them

e. go on a diet

f. do exercises every morning

g. not do the test well

h. play basketball

i. brush your teeth

j. finish your homework

1. If you want to be better, you......................................(should)

2. If the suitcases are too heavy, I......................................(can)

3. If you want to pass the next exam, you......................................(must)

4.If you want to lose weight, you......................................(should)

5.You......................................after each meal if you want to have healthy teeth(have to)

6. You.......................................if you want to be healthy(ought to)

7. If you don't learn the lessons carefully, you..............................(can)

8. If you want to go to town, I..........................................................(can)

9. You...........................................if you want to play computer games.(must)

10. If he is taller, he ........................................................(can)

Bài tập 3: Chọn trợ động từ thích hợp và điền vào chỗ trống Can - could - might - ought to - should - may - would - must - had better - will - shall - have to 1. ........................... you please show me the way to train station? 2. You ........................... study for your math test or you won’t do well. 3. If Sue wants to buy a car this summer, she ........................... get a part-time job. 4. Ryan ........................... remember his wife’s birthday this year. 5. Tim ........................... share his pizza with you if you ask him nicely. 6. I ........................... speak Korean fluently when I was a child and we lived in Korea. 7. I ........................... like to buy the same bicycle that you have. 8. Even though you’re growing up, you ........................... never stop having fun. 9. ........................... you play the piano? 10. I am determined that my son ........................... go to Harvard. 11. The children ........................... wake up earlier that 7:30 am. They have to at camp at 8:00 am. 12. Nicole ........................... visit her grandmother this weekend.