We should make r______ for older people on the bus.
He didn't lie down ,instead ,he tried to stand up _____（靠着）the wall.
This job gave him a new _______（转机）in his life.
We have been here for just a week.（改为同义句）
It is just a week since we ______ here.
能解释一下为什么靠着用against么？不是反对的意思么？