Choose the correct answer

Here are the answers based on the information provided in the questions:

**Question 49:** What do students who do not sign up before Friday lunchtime experience?
- **Correct Answer:** A. won't be able to choose their afternoon activities next week.

**Question 50:** What does the sign say?
- **Correct Answer:** D. You mustn't feed the birds.

**Question 51:** What does the notice say?
- **Correct Answer:** A. The water fitness classes are free to people who swim ten times in a month.

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