根据提示完成句子。
1. There are
________ ________ (20把椅子) in the classroom.
2. The pencil box is
________ the desk. (在···上)
3. Steven is drawing on the
________.
4.
________ name is Li Ming.
________ is a boy.
5. —How many
________ are there? (55支铅笔)
—There are
________.