Guten Mittag,
Habe mal die Aufgaben selbst gemacht, gebe dir mal meine Lösungen.
---Level 1---
If you eat pizza every day - you'll gain weight.
The Smiths will go to a museum - if it rains.
You will get a headache - if you don't drink enough
Jule can't go out - if John invites her to his party.
If you are in London - you can visit the Tower
Mira will wear her black dress - if she has temperature
You will arrive in time - if you take the plane.
If my mother comes back before 1pm - she will cook lunch for us.
Will you eat an apple - if I buy some?
The students will get good marks - if they learn their vocabulary well.
Everybody will tease you - if you wear those ugly shoes!
---Level 2---
It will be very hot in the classroom - if you turn on the heating
Tom and Lucy will be late - if they don't hurry up.
If I finish my homework before 3pm, - I'll go to the cinema.
If Simon does the dishes, - his mother will help him with his homework.
If your teacher explains you the if-clauses well - you will understand them.
Jessica will eat fish - if her boyfriend invites her to a good restaurant.
If the new Iphone costs more than 900$ - I'll not buy it.
We will have a party - if we win the match.
Laura will be in trouble - if she doesn't give back the book.
Pia won't help you - if you play tricks on her.
If you write too fast - you'll make a lot of mistakes.
If Peter goes on holiday, - he'll take his dog along.