Answer:1. If I bump into Claire, I will tell her you said hello.2. People will be happy if there is enough food and drink.3. We will call you if your parcel arrives today.4. They will come if she sends them a hand-written invitation.5. If Tom has enough money left over, he will book a holiday.
Answer:1. bump, will tell2. will be, is3. will call, arrives4. will come, sends5. has, will book