用in、on、behind、in front of、under填空.答后必有重谢

问题描述:

用in、on、behind、in front of、under填空.答后必有重谢
(为了省事,开头字母没有大写)1、the teacher is ( )the blackboard.2、the blackboard is( )the teacher.3.the windows are ( )the wall.4、the book is( )the desk.5.the bag is( )the desk.

in front of
behind
in
on
in/on/under
最后一个要看具体情况了,