题目内容
Every 40 minutes we will take a 20-minute break, ______ your guide will give a short talk on different aspect of the Great Wall.
A. during that B. and when C. which D. during which time
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题目内容
Every 40 minutes we will take a 20-minute break, ______ your guide will give a short talk on different aspect of the Great Wall.
A. during that B. and when C. which D. during which time