A、He is old. B、He is lazy. C、He might be sick. D、He might be tired. D

W: I don’t understand why this book for self-study doesn’t have answers to the questions.
M: But it does. You can find them at the back of the book.
Q: What can we learn about the self-study book?

M: I don’t know what to do with my professor. This morning we found him sleeping in his office.
W: Don’t be so hard on him. He’s probably just weary.
Q: What does the woman say about the professor?