单项选择题
— Are you sure about that? —（）
A.You needn’t worry about that B.I like the idea. C.Oh, no. I’m afraid of that D.Oh, yes. I’m absolutely positive
单项选择题 — I'm trying to call Marie, but there's no answer. —（）
单项选择题 — Can I help you to get it down? — （）
单项选择题 Afternoon, sir. Where to? -- （）
