20-21. 𝙈𝙖𝙧𝙠 𝙩𝙝𝙚 𝙡𝙚𝙩𝙩𝙚𝙧 𝘼, 𝘽, 𝘾 𝙤𝙧 𝘿 𝙤𝙣 𝙮𝙤𝙪𝙧 𝙖𝙣𝙨𝙬𝙚𝙧 𝙨𝙝𝙚𝙚𝙩 𝙩𝙤 𝙞𝙣𝙙𝙞𝙘𝙖𝙩𝙚 𝙩𝙝𝙚 𝙬𝙤𝙧𝙙(𝙨) 𝙊𝙋𝙋𝙊𝙎𝙄𝙏𝙀 𝙞𝙣 𝙢𝙚𝙖𝙣𝙞𝙣𝙜 𝙩𝙤 𝙩𝙝𝙚 𝙪𝙣𝙙𝙚𝙧𝙡𝙞𝙣𝙚𝙙 𝙬𝙤𝙧𝙙(𝙨) 𝙞𝙣 𝙚𝙖𝙘𝙝 𝙤𝙛 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙦𝙪𝙚𝙨𝙩𝙞𝙤𝙣𝙨.Question 20. Your experience with oil well fires will be i̲n̲v̲a̲l̲u̲a̲b̲l̲e̲ to the company in case of trouble. *1 điểm A. important B. precious C. priceless D. worthlessQuestion 21. People sometimes choose partners who compensate for their own s͟h͟o͟r͟t͟c͟o͟m͟i͟n͟g͟s͟. *1 điểm A. disadvantages B. benefits C. flaws D. strengths