5. Choose one correct sentence.
(A) This is Paul, who I believe you've already met at the conference.
(B) Eva's teacher whose she can rely on will retire next year.
(C) I need to know whom cleaned the room and mopped the floor.
(D) The computer engineer whom I asked for assistance was smart.
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統計: A(0), B(0), C(0), D(1), E(0) #3364842
統計: A(0), B(0), C(0), D(1), E(0) #3364842