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

1. If you want to be better, you.......should a. stay in bed...............................(should)

2. If the suitcases are too heavy, I..................can d. help you carry them....................(can)

3. If you want to pass the next exam, you.................must​ b. study harder.....................(must)

4.If you want to lose weight, you.....................should e. go on a diet.................(should)

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

6. You...................ought to f. do exercises every morning....................if you want to be healthy(ought to)

7. If you don't learn the lessons carefully, you..............can g. not do the test well................(can)

8. If you want to go to town, I.....................can c. give you a lift....................................(can)

9. You.........must .j. finish your homework.................................if you want to play computer games.(must)

10. If he is taller, he ....................can.h. play basketball...................................(can)

1) You really have to work harder if you want to pass that examination.

2) Many children in Britian have to wear uniform when they go to school.

3) Last night Don suddenly became ill. We must call the doctor.

4) I can stay in bed tomorrow morning because I don't have to work.

5) What ever you do, you mustn't touch that switch. It's very dangerous.

6) Ann has had to wear glasses since she was eight years old.

7) I'm afraid I can't come tomorrow. I will have to work late.

8) I'm sorry I couldn't come yesterday. I had to work late.

9) You mustn't forget what I told you. It's very important .

10) Tom may have to go away next week.

11) We couldn't repair the car ourselves. We must take it to the garage. 

12) She don't have to get up so early. She gets up early because she prefers to.

13) We haven't had to leave yet. We've got plenty of time .

14) When you come to London again, you must come and see us.

15) I don't want anyone to know. You mustn't tell anyone what I said .

1) You really must work harder if you want to pass that examination

2) Many children in Britian have to wear uniform when they go to school

3) Last night Don suddenly became ill. We had to call the doctor

4) I can stay in bed tomorrow morning because I have to work

5) What ever you do, you mustn't touch that switch. It's very dangerous

6) Ann has had to wear glasses since she was eight years old

7) I'm afraid I can't come tomorrow. I have to work late

8) I'm sorry I couldn't come yesterday. I had to work late

9) You mustn't forget what I told you. It's very important 

10) Tom will have to go away next week

11) We couldn't repair the car ourselves. We had to take it to the garage 

12) She has to get up so early. She gets up early because she prefers to

13) We have had to leave yet. We've got plenty of time 

14) When you come to London again, you must come and see us

15) I don't want anyone to know. You mustn't tell anyone what I said 

1. If you want to be wise in the morning, you must go to bed early.

2. People should play sports if they want to keep fit.

3.Film cannot be shown tonight if there is no electricity.

5.You should go by an airplane if you want to come to Ha Noi soon.

6.Students ought to ask teachers about explaination if they don't understand the lessons.

7. We must postpone the meeting if the manager don't come soon.

8. I can go for a picnic with my friends if we have 3 days off.

Đáp án: attend

I . Rewrite these sentences using '' modals with if ''

1. It is fine tomorrow. We go on a picnic ( will )

=>If it is fine tomorrow, we will go on a picnic

2. You don't want to be late for the meeting . You take a taxi ( ought to )

=>If you didn't want to be late for the meeting, you ought to take a taxi

3. You enter the stadium . You have a ticket ( can )

=>If you enter the stadium, you can have a ticket.

4. You want to be there on time . You leave here now ( must )

=>If you want to be there on time,you must leave here nơ

5. You want your health to be better . You go to bed early ( should )

=>If you want your health to be better, you should go to bed early

6. I have a lot of free time . I go for a walk with you ( will )

=>If l have a lot of free time,l will go for a walk with you

7. You want to go to England to study . You are good at English ( must )

=>If you want to go to England to study, you must be good at English

8. Your homework in ready . You take a short rest ( may )

=>If your homework in ready ,you may take a shorr rest

9. You want to go home early . You finish your duty ( have to )

=>If you want to go home early, you have to finish your duty

10. You hurry . You don't miss the last bus ( won't )

=>If you don'thurry, you won't miss the last hus

I . Rewrite these sentences using '' modals with if ''

1. It is fine tomorrow. We go on a picnic ( will )

-> If it is fine tomorrow, we will go on a picnic.

2. You don't want to be late for the meeting . You take a taxi ( ought to )

-> You ought to take a taxi if you don't want to be late for the meeting.

3. You enter the stadium . You have a ticket ( can )

-> If you have a ticket, you can enter the stadium.

4. You want to be there on time . You leave here now ( must )

-> You must leave here now if you want to be there on time.

5. You want your health to be better . You go to bed early ( should )

-> If you want your health to be better, you should go to bed early.

6. I have a lot of free time . I go for a walk with you ( will )

-> If I have a lot of free time, I will go for a walk with you.

7. You want to go to England to study . You are good at English ( must )

-> You must be good at English if you want to go to England to study.

8. Your homework is ready . You take a short rest ( may )

-> You may take a short rest if your homework is ready.

9. You want to go home early . You finish your duty ( have to )

-> If you want to go home early, you have to finish your duty.

10. You hurry . You don't miss the last bus ( won't )

-> If you hurry, you won't miss the last bus.

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)

Đáp án là: attend.

1.I....could.....(can/could) swim when i was 10
2.You....ought....(ought/should) to study harder if you want to get good marks
3.It's going to rain.You.....ought to....(ought to/can) take an umbrella with you
4.The building is burning.We....must....(can/must) get out of it now
5.I ....can't....(can't/ couldn't) dance now but i could dance very well when i was 7
6.You....should...(should/ought to) not stay up late.It's harmful to your health
7.He....ought not to....(ought not to/can’t) drive too fast.It’s dangerous
8.I....must.....(can’t/must) finish my assignment today or i will be punished

II. Complete the sentences using the given words.

mustn't             don't have to               should                          ought

1. You ______don't have to_______ type your essay but if you want, you can do it.

2. I  ___mustn't_____go home too late. My parents are very strict.

3. She is an expert adviser; thus, I think you __ought_____to ask her for some advice.

4. You _______should _________ ask your teacher if you don't understand the lesson.

shouldn't          have to                        ought not                     must

5. I _______ have to ___finish homework before going to class. My teacher is rather strict.

6. We ____must___show respect to our parents.

7. I think you _________shouldn’t _________ stay up late because it is not good for your health.

8. If you want to help your friend, you _____ ought not ____to do her homework. Instead, you should show her how to do it by herself.