C/m rằng (4n-3)^2-(3n-4)^2 luôn luôn chia hết cho 7 với mọi giá trị nguyên n

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Nó khá dài với lại em cũng không cần gấp nên mng làm được cứ từ từ rồi làm hộ em với :(((( em hứa vote ạa 75. He was annoyed because his secretary came late to work. ⇒ He objected ........................................................................................ 76. I’m sorry I missed your birthday party. ⇒ I wish .................................................................................................. 77. They haven’t cleaned the streets this week. ⇒ The streets ......................................................................................... 78. Apples are usually cheaper than oranges. ⇒ Apples are not .................................................................................... 79. I advise you to put your money in the bank. ⇒ You’d .................................................................................................. 80. That restaurant is so dirty that no one wants to eat there. ⇒ It is such ............................................................................................. 81. John only understood very little of what the teacher said. ⇒ John could hardly .............................................................................. 82. Unless someone has a key, we can’t get into the house. ⇒ We can only get .................................................................................. 83. I’m sure you didn’t lock the front door. Here is the key. ⇒ You can’t ............................................................................................ 84. He prefers golf to tennis. ⇒ He’d rather ..................................................................................... 85. He is sorry now that he didn’t invite Molly to his party. ⇒ He wishes .......................................................................................... 86. “Bring your swimming things incase it’s sunny”. ⇒ He told .............................................................................................. 87. There’s no need for you to talk so loudly. ⇒ You don’t ........................................................................................... 88. I haven’t been to Bristol for three years. ⇒ The last time ..................................................................................... 89. No one has signed this cheque. ⇒ This cheque ...................................................................................... 90. Time will be 18 next week. ⇒ It’s Tim’s ............................................................................................ 91. Unless he phones immediately he won’t get any information. ⇒ If ........................................................................................................ 92. How long is this since they bought the house? ⇒ When ................................................................................................. 93. He couldn’t repair the broken vase. ⇒ The .................................................................................................... 94. The garden still needs digging. ⇒ The garden hasn’t .............................................................................. 95. Have you got a cheaper carpet than this? ⇒ Is this .................................................................................................. 96. I can’t get my feet into these shoes. ⇒ These shoes ....................................................................................... 97. I am very pleased that we shall meet again soon. ⇒ I’m looking .......................................................................................... 98. “Keep away from this area,” said the security guard, when we approached the fence. ⇒ The security guard told ....................................................................... 99. I’ve never met such a famous person before. ⇒ It’s ...................................................................................................... 100. This pudding can be cooked in its tin. ⇒ You don’t ........................................................................................... 101. “Why didn’t I get a computer before?” thought the office manager. ⇒ The office manager wondered ........................................................... 102. “You’d better not lend him any more money, Elizabeth” said John. ⇒ John advised Elizabeth ...................................................................... 103. I started work for the company a year ago. ⇒ I’ve been ............................................................................................ 104. Susan felt sick, because she ate four cream cakes. ⇒ If Susan ............................................................................................. 105. My suit needs to be cleaned before the interview. ⇒ I must ................................................................................................