一、单项选择（共15小题;每小题1分，满分15分）
1. -- Oh, dear! I've broken a window.
-- _______ . It can't be helped.
A. Never mind B. All right C. That's fine D. Not at all
2. Let’s _______ our personal feelings for now, and get to our business.
A. set up B. set off C. set about D. set aside
