29. Washington is the c____ of the United States.

28. W____ this is true, I can’t say.

27. I’d like to book 4 _____ tickets.(往返)

26. If you get a _____ to go, take it.(机会)

25. The music ____ beautiful.(听)

24. On the _____(far) bank of the river there’s a small house.

23. That sounds _____(real) cool.

22. Go _____ along the road, and you’ll find the shop on the right.(直的)

21. Hainan _____ is a beautiful place.(岛)

20. They are making a _____(调查) these days.