单项选择题
I have the authority（）.
A. to negotiate with you B. has done damage to our reputation C. to make this product possible D. what seemed an impossible problem
单项选择题 Because we can’t find a compromise（）
单项选择题 We very much appreciate your efforts（）.
单项选择题 We’ll do our（）to make your visit worthwhile.
单项选择题 Shall we get straight（）to business?
单项选择题 The engineer recommended（）
