I ( )my wallet when I was shopping in the store.答案为什么选择must have dropped而不是ought to have dropped?

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I()mywalletwhenIwasshoppinginthestore.答案为什么选择musthavedropped而不是oughttohavedropped?I()mywalletwhenIwa

I ( )my wallet when I was shopping in the store.答案为什么选择must have dropped而不是ought to have dropped?
I ( )my wallet when I was shopping in the store.
答案为什么选择must have dropped而不是ought to have dropped?

I ( )my wallet when I was shopping in the store.答案为什么选择must have dropped而不是ought to have dropped?
must do 和 ought to do都表示"应该做"
但是must还有个功能：表肯定的猜测.
这里就是指 我在那商店购物的时候肯定把钱包给丢了.表猜测,用must
ought to 没这个功能.

这里用must have dropped时表示对过去发生的事情的一种肯定性的推断，准确率比较高的那种
而ought to have dropped可能性较低

请翻译:I was driving along the motorway when my car broke wallet. i am ().i lost my wallet 2011 山东when I got on the bus,I ______(realize) i had left my wallet at home I'll never forger my stay there___I recovered my lost wallet.A.that B.if C.where D.when When I lost my wallet,I never expected it to be returned.为什么用be returned ,为什么用被动. I left my wallet at home Oh on ,I ___(lose)my wallet. 英文作文:I lost my wallet i lost my wallet.what a ___ i have lost my wallet和i lost my wallet有什么区别呀 I lost my wallet和I have lost my wallet 意思上有什么区别 请选择：I was taking my savings to the post office__I lost my wallet.A.when B.while C.as D.just as 并请解释为什么 I'll never forger my stay there___I recovered my lost wallet.A.that B.if C.where D.when为什么么选D不选C啊 I ( )my wallet when I was shopping in the store.答案为什么选择must have dropped而不是ought to have dropped? I left my wallet in the restaurant.Could you please wait __ I go back to get it?A.while B.when请问这题应该选哪一个? I left my wallet in the restaurant .Could you please wait ____ i go back to get it为什么答案是while啊?应该是when把 请翻译I open my wallet ,find no money… I open my pocket,find no coin …Bet when I opey my life,there you are then I know how rich I am Happy Thanksgiving Day I have found my wallet.he said to me.