Verbs as should/shouldn't, can/can't, have to/ must, don't have to, mustn't

Students don’t have to ask to use the computer, but they must ask if they can go online.

expressing no obligation and obligation / necessity.

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modals: expressing obligation, advice and permission

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Questions 13

Answers

1
You should be careful about your safety online.
expressing permission
expressing obligation, necessity advice and permission
expressing obligation
expressing advice
2
Advice = should / shouldn’t; Obligation = must, have to / don’t have to, Permission = can / can’t
True
False
3
Can anyone use the computer at the library? You can/may only use the Internet if you have a library card.
expressing obligation, advice and permission
expressing obligation
expressing permission
expressing necessity, advice and permission
4
We use... to express prohibition.
don’t have to
must or have to
mustn’t
can or may
5
You shouldn’t give away personal information.
expressing advice
expressing obligation
expressing permission
expressing advice and permission
6
We use... to express permition.
must or have to
mustn’t
can or may
should or shouldn’t
7
You have to protect yourself with a strong username and password.
expressing obligation and advice
expressing permission
expressing obligation
expressing necessity
8
We use... to express obligation/necessity.
must or have to
should or shouldn’t
can or may
e don’t have to
9
Children under 14 can’t/may not use the Internet at all.
expressing obligation and permission
expressing obligation, advice and permission
expressing permission
expressing advice and permission
10
We use... to express lack of obligation/necessity.
don’t have to
must or have to
can or may
mustn’t
11
What are modals?
Adverbs.
Verbs as should/shouldn't, can/can't, have to/ must, don't have to, mustn't
Adjectives.
Nouns.
12
We use... to give advice.
have to or must
don't have to or mustn't
can or can't
should or shouldn’t
13
Students don’t have to ask to use the computer, but they must ask if they can go online.
expressing no obligation and obligation / necessity.
expressing obligation, advice and permission
expressing advice
expressing obligation and no obligation / necessity.

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