This exercise op. 35 no. 5 by Sor gives practice in keeping a repeated pattern going from beginning to end. The tempo Allegretto shows that it should be performed without slowing down, and lightness in playing will certainly make it easier.
The complete set of Sor’s 24 very easy exercises op. 35 is available from Tecla Editions at www.tecla.com as part of the new 2019 second edition of Sor’s New Complete Works for Guitar edited by Brian Jeffery. For details about Sor’s music and his biography, please see www.tecla.com.