1. If Tom has a birthday party, he usually invites a lot of friends.

2. If Mary does her homework well, her teacher always praises her.

3. If I have a headache, my mother usually gives me some medicine.

4. If I cough, I drink hot milk with honey.

5. If we are late for school, our teacher gets angry.

1. don't drink, die

2. eat, becomes

3. don't feel, goes

4. are, cry

5. am