问题补充:
—Im afraid I must be off now.
—.
A. No problem
B. Never mind
C. See you
D. It doesn matter
答案:
A. No problem
B. Never mind
(答案→)C. See you
D. It doesn matter
解析:句意:--现在我恐怕要走了。--再见。No problem没问题;Never mind没关系;See you再见;It doesn matter没关系。根据句意故选C。