单项选择题
As the student kept saying "no" ,the American mod.（）
A．became disappointed B．got angry C．lost interest D．could not continue the conversation because he did not know what else he could say
单项选择题 Why does a man in the west who asks for a job say something like "Yes, I can certainly do it"（）
单项选择题 The modern people like travelling now because（）
单项选择题 We say Columbus made the world larger, that is to say （）
