Here are the completed sentences with the correct conjunctions:

1. Get up early **and** do more exercise.
2. Eat less junk food **and** eat more fruit and vegetables.
3. The weather is very cold today **so** I should put on a coat.
4. Watch less television **so** you can protect your eyes.
5. If you spend less time on computer games **or** television programmes, you will have more time for outdoor activities.
6. I have a lot of homework to do this evening **but** I don’t have time to watch the football match.
7. Take up a new hobby **and** you’ll have some new friends.
8. He has toothache **but** he still eats a lot of sweets and cakes.
9. She's very hard-working **but** not very imaginative.
10. I was lost **so** I bought a street map.