不要扔掉那些工具；它们可能有朝一日派上用场。

Don't throw away those tools; they could ___come ___in ___useful someday.

你现在学到的技能可能在未来的职业生涯中派上用场。

The skills you acquire now may ___come ___in ___useful in your future career.

在车上备一个急救箱在紧急情况下可能派上用场。

Having a first-aid kit in the car can ___come ___in ___useful during emergencies.