I'm ______ duty today. I must clean the classroom ______school. [ ]A. after; on B. in; before C

题目简介

I'm ______ duty today. I must clean the classroom ______school. [ ]A. after; on B. in; before C

题目详情

I'm ______ duty today. I must clean the classroom ______ school.
[     ]
A. after; on
B. in; before
C. on; after
D. for; in
题型:单选题难度:偏易来源:同步题

答案

C

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