Ⅱ单项选择 (每小题1分，共15分)
11. --- I need some fresh air, so I’m going out for a walk.
--- _________.
A. Have fun B. With pleasure C. You’d better not D. It’s none of my business
12. --- The couple _______ after 10 years’ marriage.
--- What a pity. Their child may suffer a lot from this.
A. broke out B. broke down C. broke up D. broke into
