Изберите правильную форму глагола,сообразно правилу теперешнего урока, и запишите

Изберите правильную форму глагола,согласно правилу теперешнего урока, и запишите предложения.
1. If you call /will call me, we will discuss / discuss our school project .
2. Nancy buys/will buy a new dress if she has/will have enough money.
3. When Sam comes/will come the puples set off /will set off on a bus trip.
4. I can/will be able to help you if you tell /will tell me about your problems.
5. If it will be/is very cold, Terry and Zack won't go/don't go skiing.