A、Because she is on vacation. B、Because she doesn’t want to. C、Because she is working busily. D、Because she is studying for exam

M: May I come in?
W: Yes, of course.
M: Hello, Kate. Where is Jane? I want her to type this letter for me.
W: I’m afraid she can’t.(8)She isn’t working today. She is studying for the exam.
M: The exam? Is she going to school?
W: Yes, she is. She is learning Japanese at night school.
M: I see. Are you going to night school, too?
W: No, I’m not, not this year.(9)But I’m thinking about taking a course next year.
M: That’s a good idea. Is that expensive?
W: No, not very.(10)Anyway it’s worth the money.
Questions 8 to 10 are based on the conversation you’ve just heard.
8. Why can’t Jane type the letter for the man?
9. Which of the following statements is true?
10. How about the cost of the night school?