23.Everyone was so busy celebrating Tom’s birthday that they failed to notice how much they their neighbors . A.had bothered B.would bother C.have bothered D.were bothering 查看更多

 

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Everyone was so busy celebrating Tom’s birthday that they failed to notice how much they      ________their neighbors.

A.had bothered                          B.would bother

C.have bothered                         D.were bothering

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