Sure! Here are the completed sentences:

II - Complete the following sentences using the given words in the box.

1. Children enjoy putting fireflies into **egg-shells** 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 - Complete the following sentences, using the correct form of the verbs in the box.

1. I will **try** to finish my homework before dinner.
2. We usually **go** to the gym after work.
3. They love to **watch** movies on weekends.
4. I can't wait to **meet** my friends tomorrow.
5. After lunch, I like to **sleep** for a while.
6. Don't forget to **collect** the mail when you come back home.
7. I will **visit** my grandparents next week.
8. You should **feed** the cat before you leave.
9. We enjoy **playing** soccer in the park.