There is a map on the wall and 4 windows in the wall 其中为什么要用on和in?

There is also a ( )China on the wall.答案有map of,map's,map ,maps there is a map on the wall. （ ）map is old.填the还是A啊? there is a map of china on the wall. There is a map on the wall 改为复数 There is a map on the wall .改成否定句 改错There is a map of world on the wall. Is there a map of China on the _ there is not a map on the wall这话对吗?还是tere is no a map on the wall?对 There's a map on the There's a map on it.快 There is a map on the wall 对on the wall 提问 they are for[ ] students.a.my b.our c.us d.theirthis is our classroom.it's a nice room .the windows are big and the walls are ehite.there is a blackboard on the front wall.there is a map of china on the back wall .there is a big desk .it is【 】th There is a map on my desk.So it will be a() class. There is a map ( ) Canada ( ) the wall there is a map on the wall改成一般疑问句,做否定和肯定回答 There is ( a map of the world) on the wall 对加括号的提问 翻译句子：There is a map of the world on the wall 用is pictues on there wall and map the a three连词成句.连成陈述句