8 Unless you book now, you won't get a ticket
You won't get a ticket, if youn book it now
You cannot get a ticket, if you book it now
If you don't book a ticket now, you cannot get it
You cannot get a ticket although you book it now
9 you make many mistakes because you aren't careful
You make many mistakes because you are careful
If you were careful, you would make many mistakes
If you were careful, you wouldn't make many mistakes
If you weren't careful you wouldn't make many mistakes
10 If jimmy were Sean, he would study harder
Sean doesn't study harder
Jimmy doesn't study harder
Sean studies harder than jimmy
Jimmy studies harder than Sean