V. Complete the second sentence using conditional sentences so that it has the same meaning as the first one.
1. It’s a pity that they don’t have a yacht to go sailing in Lake Erie at weekends.
→ They …………………………………………………………………………….……
2. If the flight isn’t delayed, we will probably arrive in New York before midnight.
→ Unless ……………………………………………………………………….……………
3. I’m sure Charlotte isn’t satisfied with the party because she leaves after just ten minutes.
→ If Charlotte was ………………………………………………………………
