X. Rewrite the sentences belowto have the same meaning as the sentences printed before them.

                1. The boy is very handsome.

-> What .................................................................................................................................................... !

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

-> Unless ....................................................................................................................................................

                3.This is the most intelligent girl I have ever met.

-> This is the first time................................................................................................................................

                4. It is not necessary for you to do that work.  ( need)

-> You don’t ..............................................................................................................................................

                5. He started studying English when he was 5.

-> He has ...................................................................................................................................................