. It is said that in the United States, over 30 ______spent on adver¬tisement each year. 5
A.billiondollarsisB.billiondollarsareC.billiondollarisD.billionsofdollarsare为什么答案是B当主...
A. billion dollars is B. billion dollars are
C. billion dollar is D. billions of dollars are
为什么答案是B
当主语是表示时间、重量、距离、价值的复数词组时，看作一个整体，谓语动词用单数。如Twenty years has passed. / One hundred dollars isn’t much for me.
为什么这题这样，是强调数量巨大，还是题目错误？ 展开
C. billion dollar is D. billions of dollars are
为什么答案是B
当主语是表示时间、重量、距离、价值的复数词组时，看作一个整体，谓语动词用单数。如Twenty years has passed. / One hundred dollars isn’t much for me.
为什么这题这样，是强调数量巨大，还是题目错误？ 展开
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