𝐂𝐡𝐨𝐨𝐬𝐞 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐨𝐩𝐭𝐢𝐨𝐧.
He _______ a book about the high cost of living.

• is writing
• am writing
• write
• are writing