(2012·南京高二檢測(cè)) Some people are worrying about the possibility _______ mobile phones could be responsible for a range of illnesses, from rashes (皮疹) to brain tumors.

A. thatB. why

C. howD. whether

 

A

【解析】

A 本題考查同位語從句。that是對(duì)名詞possibility的內(nèi)容的解釋。句意：一些人擔(dān)心手機(jī)可能會(huì)引起很多的病，像皮疹和腦瘤。

 

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