____ the fire broke out, three fire-engines were rushed to the spot.

Mr. Brook didn’t come back at the usual time last night. ______, he met some friends and stayed out until midnight.

It’s too late to go to the basketball match now;         , it’s beginning to rain.

I think the answer is right but I’m not ____ sure about it.

The hotel was nice; the weather was warm; the beaches were beautiful.____ I’d say it was a great vacation.