We're not sure but we_____ go to Prague for Christmas this year.. John _____at the bank until 10, so he arrived here five minutes ago.. I left a message on your answer phone last night..
Trang 1MODAL VERBS
Exercise 1: Complete each sentence so that it contains might, might not, must, mustn't, can or can't More than one answer may be possible.
1 Don't stand up in the boat! You _ fall in the river!
2 Sue says she's stuck in traffic and she _ be late
3 You really _ start spending more time on your work
4 Tell Peter he _ stay the night here if he wants to
5 That's a really stupid idea! You _ be serious, surely!
6 You _ realize it, but this is very important to me
7 Don't be silly You _ expect me to believe you!
8 We're not sure but we _ go to Prague for Christmas this year
9 I learn to fly! You _ be joking!
10 Bill cooked the lunch, so you _ expect anything special!
Exercise 2: Fill in the blank with must have been, can’t(couldn’t) have been, have to/had to (be) and didn’t have to (be):
1 He knows a lot about flying plane He _a pilot when he was young
2 Vera _at the supermarket this morning I didn’t see her there
3 John _at the bank until 10, so he arrived here five minutes ago
4 When she _at the hospital? Early this morning
5 We had enough foreign currency left at the end of the holiday, so I _buy any more
6 Monica knew exactly what to do I tell her twice
7 There _an accident on South Street because the road is closed off
Trang 28 I left a message on your answer phone last night You _out.
9 You _ waiting long After all, I’m only five minutes late
10 The fire alarm went and we _out of the building in two minutes
Exercise 3: Rewrite the following sentences using the given words
1 I think you should give up smoking immediately (had)
I think you _
2 It’s necessary for me to bring my passport (have)
I _
3 It’s very inconvenient if you can’t drive (able)
_
4 I am sure that John is not the thief (can’t)
_
5 I am sure that the cat is in the house somewhere (must)
_
Exercise 4: Rewrite the following sentences using the given words
1 I’m sure that you didn’t lock the front door Here is the key
You can’t
2 It was quite unnecessary for you to carry all those parcels home yourself
You
3 It was careless of you to leave the windows open last night
You shouldn’t _
4 I’m sure it wasn’t Mrs Mai you saw because she is in Boston
Trang 3It can’t
5 I’m sure Alison made arrangement I recognized her voice
It must
6 Maybe John’s working this weekend
John
7 I’m sure he didn’t know that his brother was seriously ill
He couldn’t possibly
8 I didn’t apologize That was wrong of me
I should
9 I am sure it was Judy that I saw in town this morning
It must
10 It wasn’t necessary for me to go out after all
I needn’t _
Exercise 5: Rewrite the following sentences using the given words
1 I am sure you were surprised when you heard all the news (must)
You _when you heard the news
2 It wasn’t necessary for you to do all this work (needn’t)
You _all this work
3 Someone almost certainly broke the window on purpose ( must)
The window _on purpose
4 I’m sure you are very tired after working so hard (must)
You _ after working so hard
5 It is possible that one of the men died on the mountain (may)
One of the men _on the mountain
6 I’m sure that you were driving too fast (been)
Trang 4You _ too fast.
7 The thief almost certainly came in through the window (come) The thief _ through the window
8 If he is not in the office, then I’m sure he’s working at home ( must)
If he is not in the office, he _