1.
A:What's wrong with the boy?
B:He has a cough.
A:Why does he have a cough?
B:He may be cold.
A:What should he do?
B:He should drink some water and take some medicine.
2.
A:What's wrong with the girl?
B: She has a toothache.
A:Why does she have a toothache?
B: She may eat too many sweets.
A:What should she do?
B: She should brush her teeth in the morning and before bedtime.
