— Can I have ______cakes, please? —Sorry, I don’t have _______cakes in my fridge.
There are apples in the basket, but there aren't oranges.
Mary and I _________ friends.
There _______ a pen and some pencils on the desk.
.--- Is your sister a factory worker or a doctor? --- ________________.
--------- Where are my pens? --------- _________________.