----- Nội dung dịch tự động từ ảnh ----- IV. Error Identification Identify the one underlined word or phrase that is incorrect. (Tìm từ hay nhỏóm từ được gạch dưới không đúng-) 51. We write to cach other about once cach month. a b 52. My pen pal usually tells me about his life in American. a. b. 53. What does the post office sell apart of stamps and envelopes? a b d 54. He lives in a flat of this twenty-storeys building. ab 55. I'm free on Sundays but I have to work hard the others six days of the week. 56. They are bored at doing the same things day after day. a bc 57. She doesn't like living in a big city because there hasn't enough fresh air there. 58. The selling price of that house and some furnitures is $25,000. b 59. Look at these two beautiful vases. Which one do you like best? a 60. After the party we will thank Freda for give us a lovely evening.