Sure, here are the completed exercises:

**Exercise 9: Fill in the blanks with correct form of the verbs.**

9. I hope **to see** you soon.
10. He decided **to study** English every day.
11. We should **clean** our room.
12. She wants **to watch** a movie tonight.
13. They enjoy **listening** to music.
14. I like **painting** pictures.
15. He needs **to find** a job.

**Exercise 11: Fill in the blanks with correct form of the verbs.**

1. I (like) **like** (dance) **dancing** at parties.
2. She (prefer) **prefers** (eat) **eating** pizza over hamburgers.
3. They (like) **like** (go) **going** to the beach in the summer.
4. He (prefer) **prefers** (watch) **watching** movies at home rather than in theaters.
5. We (like) **like** (listen) **listening** to music in the car.
6. Sarah (prefer) **prefers** (read) **reading** books in her free time.
7. Peter (like) **likes** (play) **playing** soccer on weekends.
8. They (prefer) **prefer** (travel) **traveling** by train instead of by plane.
9. He (like) **likes** (paint) **painting** pictures on canvas.
10. She (prefer) **prefers** (run) **running** in the park rather than on a road.

**Exercise 12: Rewrite the sentences with correct form of the verbs and fill the adverbs to the correct place in sentences.**

1. My sister **usually watches** TV in the evening.
2. He **always has** dinner together as a family.
3. They **do not often go** to the cinema on Fridays.
4. He **always brushes** his teeth before bed.
5. She **sometimes goes** for a run in the morning.
6. He **is never** late for school.
7. They **usually visit** their grandparents once a month.
8. He **sometimes helps** his parents with household chores.
9. She **does not usually go** shopping on weekends.
10. They **sometimes stay** up late on weekends.