84. My grandmother hiccupped for two weeks. (对划线部分提问)

83. Sam was born in Beijing. (对划线部分提问)

82. This girl is so young that she can't drive the car. (用too...to...改为简单句)

　　 按括号内的要求改写下列句子。

81. I went to the aquarium with my mother last Sunday.(改为一般疑问句)

74. We can't learn English so well w　　　　　　 our teacher's help.

73. Mr. Green has quite a few friends and they often i　　　　　　 　him to dinners.

72. My grandmother feeds a lot of hens and they 1　　　　　 　many eggs every day.

71. You should take an u　　　　 　with you. It’s raining hard outside.

70. Harbin is in　　　　　 China and it's cold in winter.

B)根据句意及所给首字母提示，完成句中所缺的单词。