题目内容
—Mom,I watched TV for only forty minutes.Sometimes TV is good for us.
—Forty minutes enough.Now you must do your homework.
A. watch;is B. watching;was C. watched;are D. watching;were
B 【解析】句意:——妈妈,我仅仅看了40分钟的电视,,有时看电视对我们有好处。——40分钟足够了,现在你必须做作业。根据 TV is good for us.可知这里缺少主语,动词做句子的主语用doing/to do,所以排除A/C;根据Forty minutes看做只一个整体,所以谓语动词用单数;故选B
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