• If you want to drive a car, you should take some driving lessons.
• If you need money, you may need to get a job.
• If you don't pass the exam, you will have to try again.
• If you want to go to the festival, you may have to wear your traditional clothes.
• If I don't see you tomorrow, I will phone you.
• If you want to feel better, you should take all your medicine.
• If you want to be respected, you should treat others with respect as well.

1. Rainbows appear when sunlight and rain combine in a very specific way.
2. If the light beam hits raindrops on the way down at a certain angle, the different colors that make up the beam separate so that we can see them in the form of a rainbow.
3. Light at different angles coming through many raindrops form the rainbow that we see in stripes of red, orange, yellow, green, blue, indigo, and violet.

1. c
2. c
3. b
4. a
5. c

2a. If you recycle paper, you will protect the forest.

3b. When people eat something outside, they should put the garbage in the dustbin.

4c. If you litter, you will make the planet dirty.

5b. If you want to protect the Earth, you should dispose trash properly.