There is such a rapid increase in the number of private cars as to ______ a gas shortage.

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问题 There is such a rapid increase in the number of private cars as to ______ a gas shortage.

选项 A、causing
B、cause
C、caused
D、being caused

答案B

解析 结构"such+名词+as"后面接动词不定式。因此答案为 [B]。
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