Read each sentence. Underline the compound subject compound verb or compound direct object

Shakespeare wrote plays and sonnets
I underlined plays and sonnets

That musician writes and plays his own music
I underlined writes and plays

People ski and snowboard in those mountains
I underlined ski and snowboard

Foxes and snakes eat mice
foxes and snakes

Thank you

Right.

I'm sorry, but I couldn't quite understand the structure of the sentence you provided. Could you please clarify which part you would like me to underline?