你好我想问on ,the,the,desk ,is ,book（?）,应该怎样连接 His dictionary __h

你好我想问on ,the,the,desk ,is ,book（?）,应该怎样连接 His dictionary __his radio are on the desk
横线上填什么单词 ,麻烦你教我一下
第一个连词成句要求是问句

The book is on the desk.
His dictionary and his radio are on the desk.
再问： 第一句连词成句是问句
再答： Is the book on the desk?