57. The girl behind the house is my sister. (对划线部分提问)

________ _______ the girl behind the house?

56. What’s your father, Lucy? (改为同义句)

　 What ______ your father ______, Lucy?

55. You can’t take off your coat. (改为祈使句)

　 ________ ______ your coat off.

54. She often goes to school by bike. (对划线部分提问)

　 ________ _______ she often go to school?

53. Do they work in a factory? (改为现在进行时)

　 _______ they ______ in a factory?

52. There is some milk in the bottle. (改为否定句)

　 There ______ _______ milk in the bottle.

51. She does her homework in the evening. (改为一般疑问句)

　 _________ she ________ her homework in the evening?

50. How long _________ it ________ (take) you to get to your home?

IV．句型转换。

49. There _______ (be) an English book and two Chinese books on the desk.

48. What about _______ (watch) TV now?