He has three children,         are doctors.


  1. A.
    and two of whom
  2. B.
    two of them
  3. C.
    two of whom
  4. D.
    two of which
C
這題考查句子結(jié)構(gòu)，因?yàn)橄刃性~是children，定語(yǔ)從句要用whom，如果是and連接的并列句，要用and two of them，所以選C。
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