题目内容
【题目】—Why are you late,Jim?
—Because there________a lot of traffic when I came here.
A.is
B.are
C.was
D.were
【答案】C
【解析】考查动词的时态和主谓一致。由后面的“when I came here”可以确定主句用一般过去时态;there be句型的主语是traffic,为不可数名词,谓语动词用单数形式,故本题答案为C。
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