题目

Alice has gone to the classroom and she didn’t say ________. A. when did she come back C. when would she be back C. when she came back     D. when she would be back 答案：D老师上课时把一个班的小朋友正好分成了人数相等的若干小组．如果每组不是1人，这个班的人数就不可能是37人．√√．