2013年11月23日,中国政府按照国际通行做法,宣布划设东海防空识别区,并发布航空器识别规则公告和识别区示意图。这一措施体现了①当前国际竞争的实质 ②我国外交政策的基本立场③世界多极化发展趋势 ④有效行使独立权和自卫权
--- How will you help with the activity? --- We will ______ leaflets to ask people to take part.
--- I must be off at once. I’m late. --- You ______ to the school because today is Sunday..
--- Can you tell me whom the play ______ in the 1990s? --- Sorry, I don’t know.
--- How long has your mother ______ Beijing? --- About two weeks. But she will come back tomorrow.
--- Did you have a good time at the party? --- Yes, indeed. It’s years _____ I enjoyed myself so much.