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Youmustdotheexperimenttheteachertoldyouto.A.sinceB.whenC.asD.because

题目详情
You must do the experiment ________ the teacher told you to.
A. since
B. when
C. as
D. because
▼优质解答
答案和解析
答案C
as为连词,“正如,正像”引导方式状语从句.