I can’t work out this math problem. Can you tell me

I enjoy the party very much, but I _______go home. It’s too dark.

There was a big fire in the street last night, but the firemen _______ within twenty minutes.

Undoubtedly, life teaches us not to regret over yesterday, for it has passed and is ________ our control.[ ]

下列各句中，没有语病的一句是