The key answer of exercise 3

a)

Conversation 1

1. The woman feels terrible. She gets headaches and feels sick. She can't sleep at night because her head hurts.
2. The doctor says she should stop drinking so much tea and coffee, only one small cup a day. She gives her some painkillers and says she should take two three times a day.

Conversation 2

1. The man is worried about his foot. It hurts when he walks. It's very painful.
2. The doctor thinks it's broken and that he should go to the hospital for an X-ray.

b)

1. matter
2. problem
3. pills
4. look
5. hurt
6. worry

c)

1. sick
2. sleep
3. worried
4. hurts
5. painful