Đáp án:

1. She finished her homework. She watched TV. (and)
→ She finished her homework, and she watched TV.


2. He likes to play tennis. He doesn’t like to go swimming. (but)
→ He likes to play tennis, but he doesn’t like to go swimming.


3. I go to the gym. I want to lose weight. (because)
→ I go to the gym because I want to lose weight.


4. He finished his work. He went to the store to buy some groceries. (after)
→ After he finished his work, he went to the store to buy some groceries.


5. He was tired. He decided to take a nap and recharge. (so)
→ He was tired, so he decided to take a nap and recharge.