A、Occasionally. B、Very rarely. C、Frequently. D、Every day. A本题关键是理解once in a while，本题针对做饭的频度提问，男士的话语中含有频度的表达(once in a while)，其含

W: I’m leaving for New York tomorrow at noon．Could you drive me to the airport?
M: Only if I don’t have such a heavy load of work to do．Nick won’t be working tomorrow．
Q: What does the man mean?

W:I understand you’ve become a real cook recently，Frank．
M: Well，since my wife began working，I decided to help out by making the meals every once in a while．
Q: How frequently does Frank do the cooking at home?