如果你不锁门，可能会丢失钥匙。

If you don't lock the door, you might ___lose your keys.

我们队在决赛中输给了对手。

Our team ___lost to the opponents in the final.

他在公园里找不到他的狗了。

He ___lost his dog in the park.

她在车祸中失去了丈夫。

She ___lost her husband in a car accident.