A.must be playing | B.must have played |
C.may be playing | D.may have played |
A.Shall be | B.Would be | C.Might be | D.Should be |
A.had attended | B.attended | C.should attend | D.would attend |
A.must | B.can | C.should | D.need |
A.should | B.might | C.needn’t | D.couldn’t |
A.must | B.might | C.can | D.need |
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