请教一些初中英语语法的问题~!
1.whichofthefollowingisright?_______
A.sheisEnglishB.sheisaFrenchC.sheisanENGLISHD.sheisAmerica
2.ROOM320isthe___office
A.teachersB.tescher'sC.teachers'D.teacher
3.Peterwaslateforworkbecauseof____
A.someheavytrafficsB.anyheavytrafficC.aheavytrafficD.heavytraffic
4.The___arebigandbrightinourschool
A.classroom'swindows
B.classrooms'windows
C.windowsoftheclassroom
D.windowsoftheclassroom's
5.Thischairismadeof___
A.Wood
B.woods
C.wooden
D.somewoods
我知道答案,有没有人说说为什么啊..ACDCA