0. My friend is Lan.

1. She is ten years old.

2. She has a tootache.

3. She is at home.

4. She should go to the dentist because it's not good for her health.

5. She shouldn't drink cold water.

$0$.My friend is Nhat

$1$.He is 12 years old

$2$.He has sickness.

$3.$ She 's staying at home.

$4$ She should see a doctor.

$5$ She shouldn't go to hospital because The disease will become serious