51. Her sister is a very lovely girl. (改为感叹句)

(1) ________ ________ lovely girl her sister is!

(2) _________ _________ her sister is!

50. They are running fast. (改为感叹句)

_________ _________ they are running!

49. The children are singing and dancing happily. (改为感叹句)

_________ _________ the children are singing and dancing!

48. These flowers are so beautiful. (改为感叹句)

_________ _________ these flowers are!

47. The subject of English is very useful.(改为感叹句)

_________ _________ useful subject English is!

46. The film is very interesting. (改为感叹句)

_________ _________ the film is!

45. Hurry up, and you’ll catch the early bus.(改为复合句)

_________ _________ _________ _________, you’ll catch the early bus.

44. Tom is sitting on the desk.(改为否定祈使句)

_________ _________ on the desk, Tom!

43. You should read after me. (改为祈使句)

_________ _________ _________ _________!

42. Don’t make any noise.(改为陈述句)

_________ _________ make any noise.