Living in Bac Giang is cheaper than living in Hai Phong.

→Living in Hai Phong................

I last saw Peter five months ego.

→I haven't.................…

Our sources of energy will soon end if we don't try to save them.

→Unless......................

Barbara plays chess better than Mike.

→Mike doesn't.........................

There are too few glasses for everyone to have a drink.

→We haven't got........

This is the most beautiful sight I have ever visited..

→This is the first time...........................

It is my sister's eighteenth birthday next week.

→My sister will...........