Share MODAL AUXILIARIES: SHOULD, HAVE TO, MUST
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Students in private schools _________ (musn't/should/have to) wear uniform.
have to
You ____________ (don't have to/can't/should) be an expert to use the basic functions of a program.
don't have to
I think I ___________ (must/shouldn't/has to) tell her the truth. (internal obligation)
must
If you want to pass the exam, you __________ (have to/should/must) study harder. (advice)
should
According to the teacher, we _____________ (have to/has to/should) go to the meeting. (external obligation)
have to
I __________ (shouldn't/haven't to/don't have to) wear glasses, I still can see perfectly well.
don't have to
A:I have had a terrible headache since yesterday. B: Don't take an aspirine, you really _______ (should/have to/can) go to the doctor. (advice
should
You ____________ (should/must/have to) wear a rope when you are working in the library. (instruction)
must
We ___________ (must/don't have to/should) go for a coffee one day. (suggestion)
should
You ________ (shouldn't/can't/didn't have to) take the money. It wasn't necessary.
didn't have to
You __________ (must/musn't/should) use the swimming pool before 10 am (instruction).
musn't
If you want to be healthy, you _________ (should/haven't to/musn't) do exercise on a regular basis. (advice)
should
We __________ (must/has to/have to) clean our room every day. (external obligation)
have to
The advice from the health comittee is that people with covid symptoms __________ (should/must/haven't to) go to the doctor. (instruction)
must
