题目内容
— Hey, the washing up has been done!
— That ______ Cynthia, She’s always helpful.
A. need have been B. could have been
C. should have been D. must have been
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题目内容
— Hey, the washing up has been done!
— That ______ Cynthia, She’s always helpful.
A. need have been B. could have been
C. should have been D. must have been