Must と Have to の違い
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A: You _____ finish your homework before you go out.
B: I know, I will do it now.
must
have to
need to
should
A: I _____ study hard for the exam.
B: Yes, you should!
must
have to
should
can
A: He _____ get 90% on his test to pass the grade.
must
has to
should
need to
A: They _____ take the bus to work every day.
B: That must be tiring.
must
have to
need to
can
