IX. Rewrite these sentences:

37. His brother is rich. He can buy a big house.

ª His brother is ...........................................................................................................................................

38. Hung must prepare the final test carefully.

ª Hung has ................................................................................................................................................

39. It takes her 20 minutes to finish the race.

ª She spends...............................................................................................................................................

40. They intend to visit some famous places in Ha Noi next month.

ª They are...................................................................................................................................................