问题补充：
— I’m very sad because I argued with my best friends. What should I do ?
— write him a letter and say sorry to him ?
A. What about
B. How about
C. Why don’t you
D. Would you like
答案：
A. What about
B. How about
(答案→)C. Why don’t you
D. Would you like
解析：本题考查交际用语。why don’t you do=why not do意思是问什么不，表示建议。句意：——我非常难过因为我跟我最好的朋友争论了。我应当做什么？——为什么不给他写封信跟他说对不起呢？
