The art center is used to be Factory 789 and millions of tractors were made. A. what; wh

The art center is used to be Factory 789 and millions of tractors were made.
A. what; where
B. where; where
C. that; which
D. where; which

(答案→)A. what; whereB. where; whereC. that; whichD. where; which解析：主要测试表语从句。有语境可知译文为：艺术中心位于过去时789工厂的地方，并且那儿生产过数百万的拖拉机。第一空主要测试句子 used to be Factory 789中缺少主语，另外充当表语；第二空主要测试句子 millions of tractors were made中缺少状语，而且充当表语。依据上面的分析以及所给答案可知选择A为最佳。

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