听力原文:W:How often do you write home? You've bought so many stamps and there is only one
M: I used to write home once a week. I have not bought any stamps for a long time.
Q:What can be inferred from the man's answer?
(19)
A.He enjoys writing home every week.
B.He never fails to write home once a week now.
C.He doesn't write home once a week now.
D.He has been asked to write home every week.