Question 29. Nam wrote some letters. Then he went to the post office. (Use "before".)
Question 30. The fire broke out. At that time, I was working on the computer. (Use Willie".
Question 31. When I (go)_______ to school, I met my old friend. (Use "Tense")
Question 32. He had spent all his money. He decided to go home and ask his father for a job.
(Use a perfect participle.)
Question 33. These boys often (watch)______,cartoon films. (Use
Question 34: I don't remember (sign)______a contract last week. (Use "To-inf/V-ing ")
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