50. Jack is on the stage, I guess he (dance)_____________________ 51. Bill (read)____________________in the garden when the dog (jump)________________on him. 52. He felt asleep while he (do)____________________ his homework. 53. We (not see) ________________________them for a long time. 54. It (rain)________________________ when we arrived. 55. Next Friday, Kite and I (wait) _________________right here until you get back. 56. He’ll leave as soon as he (hear) ____________________the news. 57. Rosie (never/ sing)___________________in front of such many people before. 58. How long you (study)_________________________ in this school? 59. We (not receive)__________________ any letter from him since he (leave) ___________four months ago. 60. Where are you?~ I’m upstairs. I (have)______________________ a bath.

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