几道初中英语题,解答请简单的说明下理由
1.Thelightisoninhishome.He()back
A.willbeB.mustbeC.won'tbe
2.MustIcopyallthewordsnow?--NO,you()
A.can'thavetoB.mustn'tC.needn't
3.---Marystudiesveryhard
---()
A.sodoyouB.soyoudoC.youdoso
4.Inthisage,information()fromallcornersoftheearth.
A.comingB.havecomeC.comes