This machine, ______for many years, is still working perfectly. A.after which I have lookedB.which I

题目简介

This machine, ______for many years, is still working perfectly. A.after which I have lookedB.which I

题目详情

This machine, ______for many years, is still working perfectly.
A.after which I have lookedB.which I have looked after
C.that I have looked after D.I have looked after
题型:单选题难度:偏易来源:不详

答案

B
which I have looked after 构成一个非限制性定语从句.

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