VI. Put the correct form of the verbs in brackets. 64. Albert Einstein (die) ________________ in 1955. 65. Nhan (go) ________________ to the post office twice yesterday. 66. She often (brush) ________________ her teeth after meals. 67. You shouldn’t (talk) ________________ when you (eat) ________________. 68. Why (you/ not wear) ______________________ your uniform today? – Because we (have) ________________ an outdoor activity. 69. They (sell) ________________ the house several years ago. 70. I (not meet) ________________ them in the street last Sunday. 71. What must we (do) ________________ to keep our school clean? 72. He (not play) ________________ soccer after school. He (do) ________________ his homework with his friends. 73. (She/come) __________________________ to see you last night? – Yes, she did. 74. They (not be) ________________ teachers in 2000. 75. Nam (not do) ________________ his homework yesterday. 76. I (be) ________________ at home last night. 77. I (study) ________________ art when I was at primary school.