【Collectingstampsasahobbybecameincreasinglypopularduringthepastfiftyyears.A.错误B.正确】
2020-10-09 216次 反馈错误 加入收藏 正确率 : 100%
题目内容：
Collecting stamps as a hobby became increasingly popular during the past
fifty years.
A.错误
B.正确
优质解答
B,during the past few years 为完成时的标志,所以用 has become
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