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require的用法Thelawrequiresallcarsforsafetyandefficiency.A.beingtestedregularlyB.toberegularlytestedC.beregularlytestedD.regularlytested

题目详情
require的用法
The law requires all cars _______ for safety and efficiency.
A. being tested regularly B. to be regularly tested
C. be regularly tested D. regularly tested
▼优质解答
答案和解析
B
=The law requires( that )all cars【(should)be regularly tested】for safety and efficiency
require sth to be done 要求做什么