Here are suitable prepositions for the blanks in the provided sentences:

IV. Fill in each blank with a suitable preposition.

1. Sitting too close **to** the TV hurts your eyes.
2. Be careful **about** what you eat and drink.
3. She runs six miles every day to help herself **stay in** shape.
4. Watching TV too much isn't good **for** your eyes.
5. Most children are scared **of** seeing the dentist.
6. The dentist looked **at** my teeth.
7. Minh has an appointment **at** 10:30 this morning.
8. Dr. Lai filled the cavity **in** Minh's tooth.

V. Complete the sentences, using the correct form or tense of the verbs.

1. My mother **wrote** a sick note for me yesterday.
2. Nam usually **sneezes** and **coughs** when he has a cold.
3. They **sneezed** flu last week.
4. The medicines just help **to relieve** the pain.
5. There’s still no cure **for** cancer.
6. The cold will last for a few days and then **disappear**.
7. What can we do **to prevent** the spread of the disease?