𝐂𝐡𝐨𝐨𝐬𝐞 𝐭𝐡𝐞 𝐜𝐨𝐫𝐫𝐞𝐜𝐭 𝐨𝐩𝐭𝐢𝐨𝐧.
You must be _____ when riding your bike in traffic.

• carefully
• careful
• carefuly
• carefuled