2015-2016学年 外研版 必修三 Module 2 Developing and developed countries grammar课件 (12)
2015-2016学年 外研版 必修三 Module 2 Developing and developed countries grammar课件  (12)第2页

Grammar -1. Revision (5m)

He is very young, _____ he knows a lot about computer. A. and B. however C. but D. while Excuse me for breaking in, _____ I have some news for you. A. so B. and C. but D. yet