牛津版7B Unit7单元测试卷二、单项选择(每题1分,共15分)( )1. The classroom is so dirty. Lets _. A. clean up it B. clean it up C. take it up D. get it up( )2. Yao Ming, a _ Chinese basketball player, is _. A. 31-year-old; 2.26-metre-tall B. 31 years old; 2.26 metres tall C. 31-year-old; 2.26 metres tall D. 31 years old; 2.26-metre-tall( )3. Is Womens Day _ April?No, its _ March 8th. A. in; in B. on; on C. on; in D. in;