57. Miss Liu often       (收到) some nice cards from her students on Teachers' Day.

56. There are two big       (市场) near my home. I often shop there.

55. 因为这场大雨，我不得不待在家里。

 I have to stay at home               the heavy rain.

54. 他们可以在任何时间上网吗？

 Can they go online          ？

53. 你打算给你妈妈买些什么呢？ 

What are you going to               your mother?

52. 这件连衣裙不贵。我买了。 

This dress isn't expensive. I'll              

51. 稍等，汤姆！我正在做家庭作业。

               ，Tom!I'm doing my homework.

50. He buys two bags of rice.

               rice does he      ？

49. He would like some meat.

                he        ？

48. The new bike is 300yuan.

               is the new bike?