it's me or it's I ?

fadi99

who is on duty today?
回答: it's me 还是it's I?

主格形式I,we,he,she,they和宾格形式me,us,him,her,them的用法区别：用在as,than,be之后，在口语中要用宾格形式，但在正式书面语中，用其主格形式。

因此，两个都可以，关键看用在何种场合。
但在从名中主格和宾格含义不同，要注意区分。
如：He loves you as dearly as me.=He loves you as dearly as he loves me.
而He loves you as dearly as I.=He loves you as dearly as I love you.

从上面问题的场合，应当是说成It's me.因为是在口语场合。