The fire extinguisher is the wall _the back staircase

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/07/11 21:47:43

The fire extinguisher is __the wall ___the back staircase
第一个填in,第二个填at,为什么?特别是第一个,在墙上不应该是on吗?

因为灭火器是镶嵌在墙里的,所以用in .
如果是画picture则要用on.
at the back staircase.在楼梯间,既不是in也不是on,指标是其所在位置,用at+some place.
hope it is helpful for you.

The fire extinguisher is __the wall ___the back staircase There is a fire-hose reel( )the back staircase China built the Great Wall __the northern part ___the countr the door is ___the wall? fire extinguisher fire extinguisher怎么读? The child is looking forward to __the Great Wall.（） The Great Wall is very famous ___the foreigners the school___ is ___the left,__the park 填空.新概念35-36作业 there is a large garden ___the back of the house the man is standing__his back __ the fire . The man is standing ___ his back ___ the fire