几道初中英语题,解答请简单的说明下理由

问题描述:

几道初中英语题,解答请简单的说明下理由
1.The light is on in his home. He( )back
A.will beB. must beC. won't be
2.Must I copy all the words now? -- NO,you( )
A.can't have toB. mustn't C. needn't
3.---Mary studies very hard
---( )
A. so do youB. so you doC. you do so
4. In this age,information()from all corners of the earth.
A.comingB.have come C.comes

1)B
他房间的灯亮着,他一定已经回来了.
2)C
我必须抄下所有的词语?
不,不需要
3)A
玛丽学习非常努力.
你也是.
4)C
这个时代,信息开自于全球各个角落.