问题描述:
The poor dog was hurt ,luckily,it was ____at once
A.operated
B.operated on
答案:B
问:为什么不选B,求解释
打错了,为什么不选A
A.operated
B.operated on
答案:B
问:为什么不选B,求解释
打错了,为什么不选A
问题解答:
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