Certainly! Below are the completed conditional sentences:
If you have your hair dyed, you will look much better.
I will go to Spain this summer if I learn flamenco.
Tom will go sailing if the weather is nice this weekend.
If you brush your teeth after meals, you will not have cavities.
John will be healthier if he loses a few pounds and eats less.
It will take her three hours to get to Rome if Mrs. Dawson flies by plane.
If you have toothache, you must go to the dentist immediately.
Pete's parents will be very proud of him if he gets good marks.
If it is sunny, dad will take a nap in the garden.
The baby will cry if you do not want to play with him.
If Alice does her homework before 6, her mum will let her go out to play.
We will not visit Paris if we do not save enough money.
Will you be thrilled if you try bungee jumping?
If you go to bed early, you will not be tired tomorrow.
I will make a snowman if it snows today.
My boss will be furious if I am late for work again.
I will wash up the dishes if you help me.
If it rains on Saturday, we will not have a picnic at the beach.
If my parents allow me to have a pet, I will buy a dwarf rabbit.
Will he come to my birthday party if I invite him?
If you wait patiently, you will see rare birds in their natural habitat.
Will Liz visit The Opera House if she goes to Australia this summer?
If Sue posts the letter today, they will receive it.
If you have any more questions or need further assistance, feel free to ask!