问题
选择题
— Where is Lily, Lucy? I cannot find her anywhere.
— She _____ have been off long. I saw her clean the window just now. [ ]
A. shouldn't
B. can't
C. mustn't
D. needn't
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Where is Lily, Lucy? I cannot find her anywhere.
— She _____ have been off long. I saw her clean the window just now. [ ]
A. shouldn't
B. can't
C. mustn't
D. needn't
答案：B