【题目】方框中选择适当的单词完成句子
their , where, under, bookcase, know |
(1)— is the pencil?
—It's on the desk.
(2)—What's his name?
—Sorry, I don't .
(3)—Are your keys in your parents' room?
—Yes, they are on bed.
(4)Look! The baseball is the chair.
(5)My books are in the .