人中流动是经济社会发展中的必然现象。据统计,2000年我国流动人口为1.44亿,到2013年为2.89亿。其中,80%为农村户籍人口,且集中流向广东、浙江、上海、北京、江苏和福建等省。我国人口流动的根本原因是现阶段( )
—Dad, ___________ are my sports shoes? —They’re under the chair. A. which B. what C. where
The tomatoes _________ very fresh. I want some. A. is B. are C. be
She is my best friend and she always __________ everything with me. A. shares B. share C. sharing
There __________ many bottles of orange juice on the table. A. is B. are C. have
The poor dog in the park ____________ got any food, so I gave my lunch to him. A. doesn’t B. haven’t C. hasn’t