问题
选择题
This book is written by my sister, _________ is working for CCTV.
A．she
B．that
C．whom
D．who
答案
答案：D
考查定语从句。my sister是先行词，从句_________ is working for CCTV.缺主语，且指人，选D。
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This book is written by my sister, _________ is working for CCTV.
A．she
B．that
C．whom
D．who
答案：D
考查定语从句。my sister是先行词，从句_________ is working for CCTV.缺主语，且指人，选D。