她一定把钥匙丢了英语怎么说
问题描述：
她一定把钥匙丢了英语怎么说
答
She must have had lost his keys
答
She should have had lost her keys. 切记不要用must，那是命令，没有猜测的意思。
楼下说得对，确实我错了。
答
She must have lost her keys.
用虚拟语气,must have done 表示对过去情况的推测.
如果这句话还要一个过去的时间作为参照,可以用must have had done的结构,例如：She must have had lost her keys because she couldn't find them anywhere.
答
She must lose the key.