Old Mr. Black lives happily with his three dogs. of them are part of his family.
——Tina， is this schoolbag? ——Yes，it’s mine.
These are your English books. But where are ________?
I find ____ difficult to remember everything, though I’m still young.
--What’s your brother’s name?--_____ name is Dave．
Alice is wearing a __________ / waIt / skirt today.
