判断推理
The teacher had three students in this English speech contest, and all of which won the first prize.
A、
had
B、
in
C、
of which
D、
first prize
【正确答案】
C
【答案解析】
[解析] 本题考查逻辑定语从句用法。当前面有all,only等限定词时,后面的关系代词必须用that。
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