—Is it that Jack often plays computer games    makes his parents worry about him ?

—Yes , I think so .               

A．what

B．when

C．that

D．which

 

【答案】

C

【解析】考察強調(diào)句，強調(diào)句的特點是去掉it is that之后，句子完整，不缺少成分，即，that jack often plays computer gamesmakes his parents worry about him.

 

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