Question

complete the sentence with the correct word. the songs was so catchy that cora kept humming the song all day long. melody genre volume title

Explanation:

To complete the sentence, we analyze the context. The sentence says the song's something was catchy and made Cora hum it. "Melody" refers to the tune of a song, which is what would be catchy and make someone hum. "Genre" is the type of music, "volume" is the loudness, and "title" is the name of the song—none of these fit the context of being catchy to hum.

Answer:

melody