Give advice for each of the following situations. Use: You should/could ... or Why don't you ...? and the ideas below. Ideas: go for a walk, retake, join a gym, revise, turn off.

1. Your friend is worried about her final exams.
You should revise.
2. Your friend watches TV while studying.
You should turn off the TV.
3. Your friend is upset because she has gained weight.
You could go for a walk.
4. Your friend failed his driving test.
You should retake the test.
5. Your friend is bored and doesn't know what to do.
You could join a gym.