根据答句写出问句。
(1)问句_________________________? Yes, of course. You can come in.
(2)问句__________________________? I’m listening to music.
(3)问句__________________________? They’re playing chess.
选词填空。
(1)There _________a cat under the tree.
(2)There __________ two pigs on the table.
(3)There ___________three girls in the classroom .
(4)There __________ some milk on the table.
(5)There______ some sheep in this photo.