13.How many aspects are students' grades based on?

A. Three.

B. Four.

C. Five.

14. How does Marvin feel about his coursework?

A. Hopeless.

B. Confident.

C. Worried.

15. What docs Marvin plan to do?

A. Take notes.

B. Join a study group.

C. Attend advanced courses.

16. What are the speakers mainly talking about?

A. Exam results.

B. Grading system.

C. Reading plans.

听第10段材料，回答第17至20题.

17. Who is AJ Retaleato?

A. A school boy.

B. A news reporter.

C. A community worker.

18. What does AJ do in the summer?

A. Enjoy water sports.

B. Interview strangers.

C. Pick up rubbish.

19. Why does AJ do the cleaning?

A. He was once hurt by glass.

B. He cares about the earth.

C. He wants to earn money.

20. What is Anthony’s attitude towards AJ’s deeds?

A. Unclear.

B. Opposed.

C. Supportive.

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