Here are the corrections and solutions for the given sentences:

**Circle the word or phrase that needs correction:**

26. They often **walking** to school because their house is near the school.
- Correction: Change "walking" to "walk".

27. Is there a river **to** the right for the hotel?
- Correction: Change "for" to "of". It should be: Is there a river to the right of the hotel?

28. She totally agrees **to** her husband about the need for change.
- Correction: Change "to" to "with". It should be: She totally agrees with her husband about the need for change.

**Fill in each gap of the following sentences with a suitable preposition:**

39. They gave a nice shirt **to** her on her birthday.

40. It's difficult **to** find a suitable job in this city.

**Sắp xếp câu (Reorder the words to form coherent sentences):**

43. I will take my children to the circus tomorrow.

44. Lan's father promised to buy her a new bike.

If you need further help, feel free to ask!