He has made many friends, _____ is helpful to him when he is in trouble.

A. which
B. who
C. it
D. that
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科目：高中英語 來源：0125 模擬題 題型：單選題

He has made many friends, _____ is helpful to him when he is in trouble.
[     ]
A. which
B. who
C. it
D. that

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科目：高中英語 來源： 題型：

He has made many friends,         is helpful to him when he is in trouble.

A which          B who         C it           D that

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科目：高中英語 來源： 題型：單選題

He has made many friends, __________ is helpful to him when he is in trouble．


  1. A.
    which
  2. B.
    who
  3. C.
    it
  4. D.
    that

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