Nowadays,it is common to see people staring at their mobile phones instead of re

Nowadays,it is common to see people staring at their mobile phones instead of re

题型:不详难度:来源:
Nowadays,it is common to see people staring at their mobile phones instead of reading a real book,______many experts are worried.
A.whenB.for whichC.whereD.about which

答案
D
解析

试题分析:句意:如今经常看到人们盯着他们的手机而不是读真正的书籍,对此很多专家非常担忧。在非限制性定语从句中be worried和介词 about构成短语,which指代前面提到的情况,所以选D。
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