A.If we didn’t wait for | B.If we haven’t waited for |
C.we hadn’t waited for | D.Had we not waited for |
A.need | B.want | C.must | D.ought |
A.would have died | B.would not have died | C.would not die | D.has not died |
A.mustn’t | B.needn’t | C.can’t | D.shouldn’t |
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A.will; carrying along | B.is to; carrying away |
C.is going to; carrying up | D.shall; carrying out |
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