I have lost my pen.[you] [see] it anywhere?用动词适当形式填空··快12点前要跪求·什么时态？

lost i my pen week last连词 i lost my pen.i have to write with a pencil这个句子为什么要把lost改为have lost呢? The pen I ___I___is on my desk.A.thought;have lost B.thought;had lostC.think;had lostD.think;lost The pen I ( ) I ( ) is on my desk,right under my nose.A.think;lost B.thought;had lost C.think;had lost D.thought;have lost这道题应先哪个?有哪位朋友能从语法的角度分析一下? The pen I _____ I _____ is on my desk,right under my nose. A.think;lost B.thought;had lost C.think;had lost D.thought;have lost Where is my pen?I_____it A.might lose B.would have lost C.should have lost D.must have lost 一般过去时和现在完成时的区别比如 I lost my pen和I have lost my pen的区别是什么在什么情况下用过去时,什么情况下用完成时 I have created friendships ( ) my pen friend The pen I ________ I ________ is on my desk,right under my nose.A.think; lost B.thought; had lostC.think; had lost D.thought; have lost为什么D不行啊 Where is my pen?I _____ it.A.might loseB.would have lostC.should have lostD.must have lost选择原因? My pen is gone.My pen is lost.My pen is gone.My pen is lost. my pen has been losing,have you seen it anywhere或my pen has lost,have you seen it anywhere, I have never lost my heart i have lost my heart for you? Time (Have I Lost My Mind?) 歌词 I have lost my new English dictionary have i lost my faith in you? 填同义句my pen was lost.I( ) ( ) my pen.I didn't have any money for a taxi.I （ ） （ ）money for a taxi.What cool weather it was!( ) ( ) the weather was!