1Ourclassroomis()theteacherisoffice2Go()thestreet,turnrightatthefirstcrossing
3Thisisaphoto()myfamily
4Canigo()you?
5Thegirl()greenismyaunt
6therearesomebikes()thebigtree
7Putyourumberlla()thedoor
8thepostofficeis()thebankofChina
9Icanseeasofa()thedeskandthefridge
填入正确的介词