76. My teacher, Mr Smith, is a slower and more careful driver than we are.

77. We have so many modern machines today and i think in the future, we will have less work to do and much money to spend.

78. It is not easy for all of us, especially for the old men and women to learn how to use a computer. 

79. Three years ago, my best friend, Tony, couldn't speak Chinese and Tan couldn either. 

80. Mom! There is nothing in the refrigerator. Let's go to the market and buy some now.

***

81. The Japanese bicycle is not cheap enough for my father to buy. 

82. The stomachache prevented Hung's grandfather enjoying the meal. 

83. Don't forget to turn off all the lights and fans before going to school. 

84, Because my eldest brother was sick, he didn't go to school this morning. 

85. We prefer playing video games to watching television. 

Bn học tốt!!

76. more slower---slower

77. fewer=> less (work không đếm được)

78. learning=> learn (It's +adj+to-V)

79. neither=>too (cũng, nhưng nếu dùng "neither" thì câu đó phải ở khẳng định)

80. not=> bỏ

81. The Japanese bicycle is not cheap enough for my father to buy.

82. The stomach prevented Hung's grandfather from enjoying the meal (prevent from: Ngăn cách ai đó làm điều gì...)

83. Don't forget to turn off all the lights and fans before going to shool.

84. Because my eldest brother was sick, he didn't go to school this morning.

85. We prefer playing video games to watching television

Chúc bạn học tốt, hãy vote5*+CTRLHN+Cảm ơn :33