If the lights were on, they ________ have been at home.[ ]A. mayB. canC. mustD. should-九年级英语

题目简介

If the lights were on, they ________ have been at home.[ ]A. mayB. canC. mustD. should-九年级英语

题目详情

If the lights were on, they ________ have been at home.
[     ]
A. may
B. can
C. must
D. should
题型:单选题难度:中档来源:同步题

答案

C

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