题型:问答题 For most people, it’s very difficult to _____ air on the top of Qomolangma.A.take outB.take offC.take upD.take in 查看答案
题型:问答题 -Sandy is upset now. Why don’t we ?-That’s a good idea.A.cheer her upB.wake her upC.pick her upD.make her up 查看答案