We should take ____ active part in the battle to stop the germs.A.the B.an C. /
My sister ______ goes to bed early because she needs a lot of sleep every day.
--You're in a hurry. Where are you going? --To the cinema. Sue ______ for me outside.
_______ jeans were invented over 100 years ago, they're still in fashion today.
We _______pay to get into the concert. It's free.
--Good morning, sir! _________? -- I'd like to buy a sweater for my daughter.