我的钥匙不见了英语怎么说?

My key is missing./My key is lost.

I lost my keys

My keys were lost

口头上：
如果你突然发现你钥匙掉了，你可以说：where`s my key?
如果你告诉别人你之前已经掉了钥匙，你可以说：I lost my key

Where is my key
I lost my key

I can’t find my key.
My key is lost.
My key is missing.
I've lost my key.
我是外校的，这个问题老师曾特别讲过，不会错的。