8．A new study suggests that teens who spend too much time listening to music may be at higher risk of depression than         who listen to music less frequently．（　　）
A．thatB．oneC．thoseD．ones

分析 句意為：一項新的研究表明花太多時間聽音樂的青少年比那些較少聽音樂的青少年有更高的幾率患抑郁癥．

解答 答案：C   
本句中所填代詞后面有定語從句修飾，從句中謂語動詞是復(fù)數(shù)形式，所以所選的代詞一般用復(fù)數(shù)形式，同時后面所填代詞是特指，所以用those．that一般指不可數(shù)名詞或抽象名詞．

點評 考查此類試題需要理解所填代詞指代什么，然后注意單復(fù)數(shù)形式．

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