五、词汇 （共20 小题， 计20分）

A．根据句意和汉语提示写出单词，完成句子。

71. Lucy is busy today. Shall we ask Lily_______ (代替)?

72. Everyone _______ (出席) that meeting yesterday afternoon.

73. No one is willing to help Tom, so he feels _______ (无助的).

74. English is one of the most important ___________ (语言) in China.

75. Who did better in the Maths ________ (竞赛), Li Ming or Sun Wei?

B. 根据句意，用所给单词的适当形式填空。

76. He is very _________ (humour) and often makes me laugh.

77. It’s important to brush your teeth at _______ (little) twice a day.

78. _______ (luck), they passed the exams and went to their favorite high school.

79. Help ________ (you) to some soup, boys and girls.

80. You must tell me ________ (exact) what you would like to do next.