Sure! Here are the answers to the questions based on the text:

1. For the question about the word opposite in meaning to "old":
- **Answer: A. new**

2. For the question about how to make science lessons more interesting:
- **Answer: C. boring** (closest meaning to "interesting")

3. For the question about cycling in the park:
- The exact option isn't provided above, but the answer to typically cycling would be:
- **Answer: A. dive a bike** would be incorrect; likely need to choose among the other options based on context (e.g., C. go for a walk could fit if it’s asking for an alternative).

If you need further explanation or assistance with any other questions, let me know!