单项选择题
The passage mainly tells us （）.
A．that it"s not easy to travel abroad B．that humor is very important in communication C．some skills in dealing with foreigners D．the importance of communicating with foreigners
单项选择题 When you play a game, the person with whom you are playing against is your ______.
单项选择题 Mr. Smith ______ be in New York because I saw him in town only a few minutes ago.
单项选择题 The residents, ______ had been damaged by the flood, were given help by the Red Cross.
