Complete the alien exchange student's diary entry about fitting in at a human high school.

Choose the correct phrase to complete the sentence.

To appear perfectly normal to the earthlings, I have decided to learn how to play _____ in the school's jazz band.

The correct answer is the saxophone.

When talking about playing a musical instrument in a general sense or as a skill, we use the definite article "the" (e.g., "play the piano," "play the guitar," "play the saxophone").