V: Rewrite the sentences ,so that their meaning stays the same,using the beginning given

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

Unless…… ………………………………………………………………………

3.There are two few glasses for everyone to have a drink.

We haven’t got………… ……… …… ………………………………

5.It is my sister’s eighteenth birthday next week.

My sister will…… ……… …… ………………………………