Sure! Here are the completed sentences using the words provided:

1. Children enjoy putting fireflies into **jars** and observe them lighting at night.
2. Playing **board games**, like Monopoly or chess, helps to speed up your response.
3. All you really need for **bird-watching** are time and a suitable pair of binoculars.
4. You should wear protective clothing before going **horse-riding** to protect yourself in case of falling from the horse.
5. On winter days, we usually go **ice-skating** on the lake at Jackson Park.

### III
1. Our plane (take) **will take** off at half past nine tomorrow morning.
2. My sister promises that she (teach) **will teach** me how to play chess tomorrow.
3. I (buy) **am buying** a new pair of badminton rackets next Sunday because mine is broken.
4. My brother (do) **does** mountain climbing?
5. My grandmother (not-like) **does not like** spicy food.
6. John (learn) **is learning** to carve eggshells this summer because he really likes this kind of art.
7. Martin (play) **plays** football every Tuesday afternoon in the park near his house.
8. David (give) **is giving** his younger sister a book as a birthday gift next week.
9. My mother always (collect) **collects** rags for me to make clothes for my dolls.
10. My parents don’t like (eat) **to eat** out because they think it is not healthy.
11. I hate (play) **playing** cards with my elder brother because he always cheats.
12. Martin enjoys (go) **going** to the church at weekends.
13. My daughter loves (read) **reading** comics before going to bed.
14. My father loves (go) **going** to football games; he even spends a lot of money going to big leagues all over the world.
15. Karen enjoys (shop) **shopping** for clothes and shoes.
16. Simon likes (go) **going** fishing with his dad at weekends.
17. Rosie hates (do) **doing** housework.

### IV
1. I hate **trying** to shop because it costs me a lot of money.
2. Ella just likes **visiting** her friends at school because she has to study hard during the week.
3. Mrs. Johnson enjoys **collecting** colorful rugs. She often buys them in the market or on the Internet.
4. Children hate **feeding** their pets before going to school in winter mornings.

Feel free to ask if you need further assistance!