Exercise 4: Read the text and choose the correct answer.

My name is Lan. I get up very early in the morning. I do morning exercise with my father. After breakfast, my brother and I ride bicycles to school. We come back home at 11'o clock and then have lunch with our family. In the afternoon, I study with my partner. Her name is Mai. Sometimes, I go to the library to look for some information. My family goes to the cinema once a month.

How often do her family go to the cinema?
They go to the cinema once a............