Unit 1-3

Must, have to, ought to, should,
1. Complete the sentence with must or have/has to.
Vietnamese children…………….wear uniform when they go to school.
Last night my sister was ill. We……………………call the doctor.
I have had toothache. I…………make an appointment with the dentist.
I don’t want to……………….wait in a queue for eggs.
She………………….work on Saturday morning.
When you come to California, you…………………….come and see us soon.
This is a terrible party. We…………………..go home
If there are no taxis we will……………………walk.
Daniel………………………go to the bank. He hasn’t any money.
You really…………….hurry up. Vicky, We don’t want to be late..

II. Put must / have to / don’t have to/ ought to / should / shouldn’t in the correct places.
Your clothes smell and you have got a cough. You…………………….smoke.
You…………..come with me if you don’t want to, I will go on my own.
I am going to bed that now, because I……………………be up early tomorrow.
It is my mother’s birthday tomorrow; I……………..buy her present.
If you need some help with your homework, you………………ask me before.
Children …………….obey their parents.
My bedroom is a real mess. I…………………….tidy it.
I’d like to meet your boyfriend; you……………………..invite him round.

III. must, mustn’t, had to
Jill and terry will be home from school soon. I……………..cook their lunch.
Mr. Lam………………late at the office last night. There was an important job to do.
If you are absent for more than three days, you……………..get a letter from the doctor.
The dentist has told Lan she ………….eat any more sweet things. Her teeth are in bad condition.
Carol……………..you with your homework. It is important that you do it yourself.
Let’s cut an earlier train tomorrow. We……………late for the meeting.
My hair feels really dirty. I…………………….it tonight.
I forgot my front door key yesterday so I…………………………..into the house through a window.
When I first learnt English, I………………………a lot of irregular verbs.
You…………………….my letter. They are private. (bi mat rieng tu)

IV. Complete the passage with the suitable words in the box.
After should for needn’t taking mustn’t can stay

Your temperature has gone down now, so you (1)…………..stay in bed any longer. You (2)………….. eat whatever you like, but you (3)…………not drink any alcohol until you have finished (4)………. The tablets and you must (5)…………….indoors for at least three days. (6)………………that you can go out (7)………….. short walk, but you (8)……………… do anything too energetic.

V. Correct form of the verbs in brackets.
Although I (1. have)……………. A car. I prefer (2. travel)…………by train, especially if I have to (3. make)……………a long journey. As the train (4. travel)……………..at full speed through the countryside, I can (5. relax)……….., drink a coffee, read a book, or just (6. look)……………..out of the window, sometimes the movement of the train (7. keep)…………….. me asleep, something you couldn’t do while (8. drive)…………… a car. The trouble (9. be)…………… that I hate (10. wait)……. in cold stations. And I (11. get)……………. Angry when I have to waste time on (12. look)………… for a taxi or a bus at the beginning or the end of my journey.



Key: Must, have to, ought to, should,
1. Complete the sentence with must or have/has to.
Vietnamese children……have to……….wear uniform when they go to school.
Last night my sister was ill. We……had to………………call the doctor.
I have had toothache. I……must / have to………make an appointment with the dentist.
I don’t want to……have to………….wait in a queue for eggs.
She……has to…………….work on Saturday morning.
When you come to California, you………have to / must…………….come and see us soon.
This is a terrible party. We…………must…………………..go home
If there are no taxis we will………have to……………walk.
Daniel………has to………………go to the bank. He hasn’t any money.
You really………must…………….hurry up. Vicky, We don’t want to be late..

II. Put must / have to / don’t have to/ ought to / should / shouldn’t in the correct places.
Your clothes smell and you have got a cough. You……shouldn’t……………….smoke.
You……don’t have to…………..come with me if you don’t want to,