I. Rewrite the sentences in such a way that they mean almost the same as those printed before. Use the words given at the beginning of the sentences. (2.0 p) 81. Vietnamese students have fewer vacations than American ones. American students 82. He is a slower and more careful driver than I am. He drives...... 83. It isn't necessary for students to wear uniforms on Wednesday. Students........ 84. It took me two hours to get to Vinh city by car. I ......... 85. What a beautiful Christmas tree! How ....... 86. Lan didn't go to school yesterday because of her sickness. Bacause Lan..... 87. What was Hoa's weight last time? How ....... 88.The visitor spoke so quickly that I couldn't understand what he said. The visitor spoke too... 89. My brother and I went to that school. I went to that school and so.... 90. The test lasts eighty minutes.