2014秋九年级英语Unit10 You're supposed to shake hands.课文重难点知...
如:Everyone is supposed to wear a seat-belt in the car. 每个人在汽车里都应该系安全带。 Teachers are supposed to treat all the students alike. 老师应该对所有的学生一视同仁。 用法二:当be supposed to...的主语是“物”时,它表示“本应;本该”,用于表示“某事本应该发生而没有发生”。 如:The...