1.Cards do cause us some healthproblems——in fact far more serious()than moblie phones do.
A.one
B.ones
C.it
D.those
2.I read about it in some book or other ,does it matter( )it was?
A.where
B.what
C.how
D.which
3.In my opinion ,life in the twenty-first centry is much easier than( )
A.that used to be
B.it is used to
C.it was used to
D.it used to be
4.Tom felt he knew everybody's business better than they knew it ( ).
A.themselves
B.oneself
C.itself
D.himself
我错选的分别是DDAA, 尽量写出错选答案的错误和正解
越详细越好啊.`~~~
额,,上面的有点错误,
第1题错选D
第2题错选B
第3题错选A
第4题错选D ...请各位帮忙解释下..谢了
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