2.Unless we try to save our sources of enegry ,it will soon end

2>. rewrite the sentences below to have the same meaning as the sentences printed before them.
1. The boy is very handsome -> What a handsome boy!
2. Our sources of energy will soon end if we don't try to save them. -> Unless we try to save our sources of energy, they will soon end.
3. This is the most intelligent girl I have ever met -> This is the first time I have met such intelligent girl.
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II. Rewrite the sentences below to have the same meaning as the sentences printed before them.(1,0p)
    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 .............................................................................................................................................