3 sentences for 鉤 (gōu — hook)

1. 把铁丝窝个钩。

   bǎ tiě​sī wō gè gōu.

   Bend the iron wire into a hook.

   Source: Dong Chinese Dictionary

2. 他在钩上挂了点儿饵，准备钓鱼。

   tā zài gōu shàng guà le diǎn r ěr, zhǔn​bèi diào​yú.

   He put some bait on the hook and got ready to fish.

   Source: Dong Chinese Dictionary

3. 他伸手把窗户上的钩挂好，防止被风吹开。

   tā shēn​shǒu bǎ chuāng​hu shàng de gōu guà​hǎo, fáng​zhǐ bèi fēng chuī​kāi.

   He reached out and fastened the hook on the window to prevent it from being blown open by the wind.

   Source: Dong Chinese Dictionary