我的手机没电了，我找不到它了。

My phone is dead, and I can't find ___it.

孩子们玩得很开心，他们都不想回家。

The kids had so much fun that ___they didn't want to go home.

如果有人打电话来，告诉他们我稍后会回电。

If someone calls, tell ___them I'll call back later.