一般过去时与现在完成时比较练习题(整理版)(共2页).doc

精选优质文档-倾情为你奉上I、辨析A. 用 already或 yet填空1)- Have they taken down the old pictures _?-No, not _.2) Most of us have _ finished our compositions.3) He hasnt visited the exhibition _. 4) I have finished my homework _.5)I havent finished my homework _.B.用 since或 for填空1) We have learned five lessons _ the beginning of this term.2) Mrs. Liao has been in hospital _last week.3) I have stayed at my aunts _two weeks.C.