问题描述：
一道初中英语单选题求助
——What did the teacher say just now?
——He asked the students ______.
A.when they had cleaned the classroom
B.where they had spent their May Day holiday
C.how long they have been collectig shells
D.if they would take part in the skating marathon or not
感觉ABD都像对的
——What did the teacher say just now?
——He asked the students ______.
A.when they had cleaned the classroom
B.where they had spent their May Day holiday
C.how long they have been collectig shells
D.if they would take part in the skating marathon or not
感觉ABD都像对的
问题解答：
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