Rewrite the sentences, starting with the words given

1. The only reason we won the contract was Tom's fantastic presentation.

We wouldn't have.............................................................................................................................................................. .
 

2. The eventual arrival of the ferry prevented a fight from breaking out amongst the passengers.

If it hadn't been for........................................................................................................................................................... .
 

3. None of the passengers was injured because of the driver's quick reaction.

But......................................................................................................................................................................................... .
 

4. We'll have to cancel the meeting if Wendy doesn't turn up soon.

Unless................................................................................................................................................................................... .