Rewrite the following sentences, using suggestions?

Question

1.I didn't meet my old friend in the party yesterday because I left so early
->If....................................................
2.leaver me alone or I'll call the police
->Unless............................................
3.I only come if they invite me
->Unless...........................................

Answer 1

1. If I hadn't left so early I would have met my old friend at the party yesterday.



2. Unless you leave me alone, I'll call the police.



3. Unless they invite me, I won't come.