Sure! Here are the correct prepositions to fill in the blanks:

1. What time does the library close?
- It closes **at** about half **past** four.

2. Can you help me wash **up** these dirty glasses?

3. We look **up** the new words in the dictionary.

4. You shouldn’t eat and watch TV **at** the same time.

5. These cards are in alphabetical order and **by** author.

6. Schools in Vietnam are different **from** those in the USA.

7. What is your date **of** birth? - November eighth.

8. Farmers are very hard-working. They work from morning **until** night on their farms.

9. I like to live **in** the countryside because people there are more friendly.