If Cause(I) Afirmativas: If it rains on the weekend ,I will surf the net. We will get a good job if we learn English. If André reads Harry Potter and the Half-blood Prince ,he will enjoy it. The trip to Europe will be wery cheap if you travel in December. They will have something to eat,if thei go home.
Negativas: They won't travel to the beach tomorrow if it rains. My friend Susan will be sad if she doesn't go to the night club next weekend. Susie will not find her arm,if Hobbes eats it. The trip wil be very expensive if you won't travel in July.