A. Mary’s mother is a nurse. B. They look down on Tom. C. 我们不理他。 D. A friend lent me a pen.
A. 数范畴 B. 格范畴 C. 时范畴 D. 体范畴 E. 态范畴 F. 人称范畴 G. 级范畴
A. 过去时 B. 现在时 C. 将来时 D. 完成时
A. Peter is not a student. B. Peter is taller. C. You are the best. D. Mary is more beautiful than Joan.