单项选择题
A．Even friends may have differences of opinion. B．Friends never argue with each other. C．It generally takes time for people to become close friends. D．Someone"s habits may annoy his friends.
A．one does not pay enough attention to information if one reads fast B．one"s comprehension drops if one reads too slowly C．in order to understand better, one has to read slowly D．many people read fast in order to save time
A．small B．big C．right D．wrong