56. I myself (witness).............. an accident on the Main Road yesterday. A boy (knock)............. down by a car. Then he (take)..................... to the nearest hospital.
57. My uncle just (open).................. a new internet house on Trang Thi street.
58. Her grandfather (die).................. 20 years ago. She (never meet).............. him.
59. Linh’brother (lose)........his job last month and since then he (be).....out of work.
60. You (see)..............Mrs.Chi recently? - Yes, I (see) ........ her at the school gate three days ago.
61. Nam (not buy).................a new computer since he (sell)..............the old one last month.
62. I (not have)........................ a good night sleep for a long time. I now feel very tired.