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Trang 1MODAL VERBS – MUST / HAVE TO / SHOULD
Ex 1 Complete the following sentences Use affirmative or negative of "must".
1 You study harder to get better marks
2 The boy is only twelve years old He _ ride a motorbike
3 Jimmy, you bite nails
4 My classmate is very ill She see a doctor as soon as possible
5 Your hands are dirty You wash them before meal
6 We brush our teeth at least once a day
7 Children _ play with dangerous objects like knives and matches
8 Students use mobile phones during the test
9 Babies _ go to bed early
10 You be impolite to elderly people
Ex 2 Complete the following sentences Use affirmative or negative of "have to".
1 Secretaries answer the phone That is a part of their job
2 Jason and Linda are on holiday They go to school today
3 He come if he doesn't want to join with us
4 You worry about me! I am ok now
5 Lam _ leave her house at 6.30 a.m in order to get to her school at 7 a.m
6 All the students obey the school rules
7 Today she doesn't have the literature lesson, so she bring her literature book
8 I take these books back to the school library on time or I will get a fine
9 There is a lift in this building, so we climb the stairs
10 Susan doesn't like her new job Sometimes she work at weekends
Ex 3 Find the correct word to complete the sentences below.
1 When we were at school we wear a uniform
2 You be an expert to use the basic functions of program
3 We _ go to the meeting Why didn’t you go?
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Trang 24 I _wear glasses, I still can see perfectly well.
5 We went to bed right after dinner because we get up early the following day
6 We _ go for a drink one day
7 You take any money It wasn’t necessary
8 We talk to each other because it was an exam
9 You turn off your mobile phone on a plane
10 You _ go swimming after a big dinner
11 You _ take an umbrella It’s raining
12 I think we _ go now It’s late
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Trang 3Ex 1 Complete the following sentences Use affirmative or negative of "have to".
1 Secretaries have to _ answer the phone That is a part of their job.
2 Jason and Linda are on holiday They do not have to _ go to school today
3 He _doesn’t have to _ come if he doesn't want to join with us.
4 You _ doesn’t have to worry about me! I am ok now.
5 Lam has to _ leave her house at 6.30 a.m in order to get to her school at 7
a.m.
6 All the students _ have to obey the school rules.
7 Today she doesn't have the literature lesson, so she doesn’t have to bring her
literature book.
8 I _ have to take these books back to the school library on time or I will
get a fine.
9 There is a lift in this building, so we do not have to _ climb the stairs.
10 Susan doesn't like her new job Sometimes she _has to _ work at weekends.
Ex 2 Complete the following sentences Use affirmative or negative of "ought to".
1 You ought to _ study harder to get better marks.
2 They _ought not to _ be angry It isn't good for their health.
3 A: It's so cold.
B: You ought to put on your thick coat before going out.
4 If somebody steals your wallet, you ought to _ tell the police.
5 You ought not to _ buy that meat It doesn't look fresh enough.
6 She _ ought not to _ stay up too late at night as she may feel tired in the
morning.
7 Candidates ought not to wear shorts and a T-shirt to a job interview.
8 It's raining If you don't want your dress to get wet, you ought to take an
umbrella.
9 You are driving too fast You _ ought to _ slow down.
10 Lisa _ ought not to treat her younger sister badly It makes her very
unhappy
Ex 3.
1 had to
2 don’t have to
3 had to
4 don’t have to
5 had to
6 must
7 didn’t have to
8 weren’t allowed to
9 must
10 shouldn’t
11 should
12 have
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