They use push-pins to ＿ ＿ the maps on the wall.

They use push-pins to ＿ ＿ the maps on the wall.
They use push-pins to ＿ ＿ the maps on the wall.

They use push-pins to ＿ ＿ the maps on the wall.
make sure

他们利用推针_ _地图在墙上。
应该是固定,填stick in.
PS:错了不要K我......