Question

Circle the verbs in the simple present.
The guitar is a musical instrument that produces
sound when the player touches or hits the strings. The
strings are tied to the instrument's body (usually made
of wood). While playing the strings with one hand, the
guitar player simultaneously presses them with the
other hand against frets, which are metal strips located
on the instrument's neck. Then, the guitar's hollow body
amplifies sound.​

Answer 1

The guitar *is* a musical instrument that *produces*
sound when the player *touches* or *hits* the strings. The
strings *are tied* to the instrument's body (usually *made*
of wood). While *playing* the strings with one hand, the
guitar player simultaneously *presses* them with the
other hand against frets, which *are* metal strips *located*
on the instrument's neck. Then, the guitar's hollow body
*amplifies* sound.​