baseball is lost, he can’t find        .

--- Mum, have you seen my mobile phone?    ---_______you bought last week? I’m sorry I haven’t seen _______.

I found there was only one copy of “Bighead Son and Small-head Father” on the bookshelf, so I decided to buy _______ at once.

—          he?— He’s my cousin.

This is Anna’s MP4.          is at home.