他在门后安装了一个衣帽挂钩。

He installed a coat ___hook behind the door.

钓鱼者小心地从鳟鱼身上取下鱼钩。

The angler carefully removed the fish ___hook from the trout.

片刻之后，她拿出一根绳子，绳子的一端有一个钩子。

A few moments later she took out a rope, which had a ___hook on one end.