--- Why are you so happy?--- That’s because an old friend of is coming.
–There is _______ interesting book on the teacher’s desk. --Oh, ______ book is Wei Fang’s.
—Sorry, sir. I made a mistake again.—________. Practise more and you’ll do better.
—Did you notice him come in?—No. I ________ a football game.
They are ________ little kids ________ they should be looked after well.
________ useful advice it is! It’s very valuable to me.