单项选择题 Could you come（）to the development workshop for a second?

单项选择题 I have the authority（）.

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（）

单项选择题 Can I （）a message or would you like to ring him on his mobile phone?