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Thelawrequiresallcarsforsafetyandefficiency.A.beingtestedregularlyB.toberegularlytestedC.beregularlytestedD.refularlytested答案是B但为什么不选C?require后不是可以跟虚拟语气的么?

题目详情
The law requires all cars ___for safety and efficiency.
A.being tested regularly B.to be regularly tested C.be regularly tested D.refularly tested
答案是B但为什么不选C?require后不是可以跟虚拟语气的么?


▼优质解答
答案和解析
require to be done=require doing 这是固定搭配