b) Answer the question

27. Alexander Graham Bell was born on March 3rd, 1847 

28. He moved to Canada with his parents

29. It is used to draw the shape of the sound waves

30. in 1876

VI. Give the correct tense or form of the words in the blanket

31. pollution

32. destroyed

33. electricity

34. inventor

VII. Rewrite the second sentence so that it has a similar meaning to the first one

35. New devices have been invented to help people live a longer life

36. If I had enough time, I could go on holiday this summer

37. In spite of having a broken leg, he tried to save his wife

VIII. Find the mistakes

38. C. doesn't go

39. C. learning

40. D. at

VI:31.pollution-ô nhiễm ko khí      32.destroyed-câu bị động vì cn là vật       33.electricity:điện          34inventor-the+noun

35.new devices has been invented to help people.....-cn là vật->bị động

36.if i had enough time,i could go on a holiday this summer-câu đk 2;xác đc vì đây là sự việc ko có thật ở hiện tại

37.in spite of having a broken leg,he tried to....-in spite of/despite+noun phrase/Ving...S+V

38c->didn't go-vế trc có wouldn't->đây là câu đk 2

39c->to learn-decide+toV
40b->will be having-at 10 p.m tomorrow là dhnb thì tương lai tiếp diễn