单项选择题
Do you think the weather will （）？
A.keep backB.keep upC.keep outD.keep up with
填空题 根据提示补充完整单词：（）make sad.单词首字母为d，意为使沮丧，
单项选择题 The one（）me is writing on the blackboard（）the classroom.
单项选择题 Do you know who lives in the building （）there is a wall?
