key

这把钥匙可以打开古老的木门。

This ___key unlocks the ancient wooden door.

她把钥匙放在桌子上了。

She left the ___key on the table.

我的钥匙掉在沙发缝隙里了。

I dropped my ___keys in the gap between the sofa cushions.

我妈妈总是把钥匙挂在钩子上。

My mum always hangs her ___keys on a hook.