单选题
In the first group, the children ______.
A、
only listened to fairy tales
B、
changed roles with each other
C、
learned to buy and sell
D、
discussed the stories they heard
【正确答案】
B
【答案解析】
[精解] [A]、[C]、[D]是其它组的孩子的活动,只有[B]是第一组的活动之一。
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