A. We can see clearly from the top of the building it i……

单项选择题--Tim, what are you looking at ? ---Sorry , Mr. Smith. I ___ out at a bird outside the window. A.looked B.am looking C.have been looking D.was looking

单项选择题---Do you work hard at your lessons? ---Yes, I no efforts. A.spend B.spare C.waste D.share

单项选择题－－－What's the matter with Jane? She has been sitti

单项选择题>You never get over being a child, ______ you have a mother to go to.A.as far as B.unless C.so long as D.although

单项选择题Lianzhan said that people in Taiwan and Mainland must try hard to understand each other, and ______ misunderstanding.