—Where is Mr. Lee? I have something important to tell him. —You ______ find him. He ______ Japan.
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? --------- _________________.