Do you__eat lunch at school?A.have to B.must C.Do you__eat lunch at school?A.have to B.must C.has to原因

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Doyou__eatlunchatschool?A.havetoB.mustC.Doyou__eatlunchatschool?A.havetoB.mustC.hasto原因Doyou__eatlun

Do you__eat lunch at school?A.have to B.must C.Do you__eat lunch at school?A.have to B.must C.has to原因
Do you__eat lunch at school?A.have to B.must C.
Do you__eat lunch at school?
A.have to B.must C.has to
原因

Do you__eat lunch at school?A.have to B.must C.Do you__eat lunch at school?A.have to B.must C.has to原因
A you 是第二人称,因此不用has C 不对, 再看B must 表示主观的理由,have to 表示客观的理由.

a