M: Can you help me with this math problem? ,F: Actually, I don't know how to do it, either. You should probably just ask the teacher. ,M: I thought you always got 100% on all your math tests. ,F: I usually do, but sometimes I need help, too. ,M: How long do you usually study for a test? ,F: About 2 hours the night before, and then an hour or so earlier in the week.
(A) M: Since you usually study for about an hour before you go to bed at night, why didn't you ever get a perfect score in math? (B) M: You usually study for about two hours before you go to bed at night. No wonder you can do this math problem. (C) M: Wow! You usually study for about two hours before a rest at night! (D) M: I’m sorry, I don’t understand. Could you say it again?
C