Here are the corrections needed for each sentence:

31. My father **hates** **drive** motorbike **to work** **in** the morning.
- The error is in part B: "drive" should be changed to "driving" to match with "hates."

Corrected sentence: My father **hates driving** motorbike **to work** **in** the morning.

32. **My** hobbies **is** going hiking and **shopping** at **weekends**.
- The error is in part B: "is" should be changed to "are" because "hobbies" is plural.

Corrected sentence: **My hobbies are** going hiking and **shopping** at **weekends**.

Thus, the answers are:
- **31: B**
- **32: B**