单项选择题A．Because it can help you in case you don’t know what to say to others.B．Because many parties ask people to do this.C．Because you can show it to others at the party.D．Because shy people like to write instead of speaking.

单项选择题A．There aren’t enough cabinets.B．There is too much noise.C．Office supplies are taking up space.D．Some teaching assistants don’t have desks.