英语高手来,(选择并说明原因)
1.Doyourbesttomakewhattheteacher
teaches________andyoucanmakegreatprogressinallyoursubjects.
A.youB.youeselfC.yourselvesD.yours
2.Havingjustcomeback,ourmanagercannothaveknownthenews,_____he?
A.canB.isC.didD.has
选择并说明原因,答的好有加分哦.