游客
题文

— Kitty, do you know ______?
— Sure, about forty minutes.

A.when did their class meeting begin.
B.where their class meeting was held
C.how often their class meeting is held
D.how long their class meeting will last
科目 英语   题型 单选题   难度 中等
知识点: 主从复合句 宾语从句
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