there_____any books on the desk.

问题描述:

there_____any books on the desk.

There aren't any books on the desk.
句中books,为复数形式,因此There be 句型中be动词应用复数形式are;
又因为句中any用于否定句或疑问句中,所以be动词are应使用否定形式,故aren't.