单项选择题
M: The cafeteria is short-handed so we’ll have to wait in line. W: I know, they asked me to work today.
A. There is too little folk. B. They have just opened. C. The employees are lazy. D. There are too few employees.
A. They cracked the rock with fire and cold water. B. They used explosives to break up the rock. C. They dug through mountains with machinery. D. They did it the way we do in modern times.
A. Detroit. B. Chicago. C. New York. D. Boston.