56. Are these your keys?(变陈述句)
my keys.
55. Are these your video tapes?(作肯定回答)
Yes, .
54. Those are orange chairs. (变为单数形式)
is orange chair.
53. Tom is a good student.(变一般疑问句)
a good student?
52. You can call Mary. Her telephone number is 65324466.(变同义句)
You can Mary 65324466.
51. Your key is on the floor.(对划线部分提问)
your key?
50.( ) You are very beautiful. J. It’s very good.
49.( ) How do you like our school? I. Good afternoon!
48.( ) Can you spell it? H. It’s a pen.
47.( ) Where are my rulers? G. His name’s Li Bing.