She didn't answer the telephone, sheasleep.[ ]A. must fallB. must have fallenC. should have fal

题目简介

She didn't answer the telephone, sheasleep.[ ]A. must fallB. must have fallenC. should have fal

题目详情

She didn't answer the telephone, she      asleep.
[     ]

A. must fall
B. must have fallen
C. should have fallen
D. can have fallen

题型:单选题难度:中档来源:贵州省期中题

答案

B

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