【单选题】The dates of the three main events in life are usually remembered because ______
C.
there are special ceremonies
D.
societies share common characteristics
【简答题】The main idea of paragraph three is that___.
【单选题】He lives on ________ floor in that building. [ ]
【单选题】—How long did he hiccup? —______. [ ]
【简答题】美国的教育技术学主要从哪三个方面向前发展?
【单选题】— How soon will he leave for South Korea? — ________. [ ]
【单选题】He came here _____. [ ]