My MP4 player isn't in my bag .Where____I have put it My MP4 player isn't in my bag.Where___I have put it?A.can B.must C.should D.would 请问答案为何是 A 这与 have put 这个完成时态

This isn't my MP4 player.__ is at my uncle's. This isn't my MP4 player.__ is at my uncle's.填MINE为什么 This isn't my MP4 player.__ is at my uncle's.填MINE为什么AT怎么解释 my MP4 player isn't in my bagMy MP4 player isn't in my bag.Where _____ I have put it?[ ]A.can B.must C.should D.would 为什么选A? My MP4 player isn't in my bag.Where___I have put it?A.can B.must C.should D.would 请顺便解释下原因 My MP4 player isn't in my bag .Where____I have put it My MP4 player isn't in my bag.Where___I have put it?A.can B.must C.should D.would 请问答案为何是 A 这与 have put 这个完成时态 i don't konw if or not he likes my MP4 player 哪里错了? whould have done 和should have done 用于对于过去的推测的用法区别如题：1——I can't find my purse anywhere.-------You____have lost it while shopping.Amay Bcan Cshould Dwould2My MP4 player isn't in my bag .Where ___I have put itAcan My father's like a football player,but my brother_A,isn't B,doesn't 选择?为什么? 1,Look,Simon,（ ）MP4 that I bought last year isn't workingA,a B,an C,the D,不填2,——What can I do for you?———I want_____MP4 player for my daughterA,a B,an C,the D,/ My aunt sent me什么MP4 player as my birthday present?急 My MP4 player must ______.Can you fix it for me?横线上填什么 where is your MP4 player?答句是什么It' over （t ）什么单词? my aunt sent me 什么 mp4 player as my birthday present快点啊明天就要交了 上个星期我的阿姨为我买了一个MP4　　　　　　　　 My aunt （　　）an MP4 player（　）last　wee上个星期我的阿姨为我买了一个MP4　　　　　　　　 My aunt （　　）an MP4 player （　）me last week The boy has a new MP4,______?A.doesn't heB.isn't heC.does heD.is he He isn't tall enough to be a basketball player.（句型转换） He isn't a (p) basketball player .But he plays well