单项选择题
I'm sorry to be late. Thank you for waiting.（）
A.Tell me the reason why you‘re late. B.That‘s OK. C.It really took up my much time. D.It‘s a pleasure. I come here 10 minutes ago.
单项选择题 Must I do the washing-up tonight?（）
单项选择题 Can I take your order now?（）
单项选择题 In my opinion, you'd better take a couple of days off.（）
