已经学习过以前的贴子,主要讨论焦点是B中的those who。想问一下,D为什么不对。直接用动作的n作主语为什么不可以呢?请指点。
63 After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals.
(A) anyone disposing of or servicing
(B) those who dispose or service
(C) anyone disposing of or who services
(D) the disposal or repair of(A)
(E) someone who disposes or repairs [A]
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