𝐂𝐡𝐨𝐨𝐬𝐞 𝐭𝐡𝐞 𝐜𝐨𝐫𝐫𝐞𝐜𝐭 𝐨𝐩𝐭𝐢𝐨𝐧.
The boys _____ working on their project now.

• aren't
• don't
• didn't