A.mustn’t | B.can’t | C.shouldn’t | D.may not |
A.must have rained | B.may have rained |
C.must rain | D.might rain |
A.can | B.must | C.may | D.should |
A.could | B.might | C.have to | D.was able to |
A.doesn’t start | B.wouldn’t start | C.won’t start | D.didn’t start |
A.was used to | B.would | C.used to | D.should |
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