This is not an economical way to get more water; _________,it is very expensive

Your father’s never been to other countries, has he — ________. He plans to go abroad again this summer.

With the help of the firefighters, the people caught in the fire managed to escape to the safe place, ______.

Can you tell me ____ last year— In Shanghai.

I don’t know his ______, so I can’t write to him.