The new machine，if properly，will work at least ten years.A. useB. usingC. being usedD. us

发布时间：2020-08-14 23:53:49

The new machine，if      properly，will work at least ten years.
A. use
B. using
C. being used
D. used

网友回答

A. use
B. using
C. being used
(答案→)D. used
解析：本题考查分词与主语之间的关系。if the new machine is used properly…
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