You should work hard to pass your exam

37. Nam said he liked to do physics experiment

38. If I were you I would work hard to pass the exam

39. I haven't visited my hometown for 2 months

40. This book has been written many times

34. Will they be traveling in Viet Nam, at this time tomorrow?

35. Hoa said Tom, they were having a wonderful time in Da Lat

36. If I became rich, I would spend all my time travelling

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