About 500 cars in the factory last month.A. were producedB. are producedC. produceD. produ

发布时间：2020-08-21 07:12:50

About 500 cars     in the factory last month.
A. were produced
B. are produced
C. produce
D. produced

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(答案→)A. were produced
B. are produced
C. produce
D. produced
解析：此题重点考查一般过去时的被动语态的基本结构。
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