84. Your daughter is very ill . Have you _______ a doctor ?

　 A. sent for　　　 B. heard from　　 C. paid for　　　 D. looked after

83. Linda often _______ her homework in the evening , but this evening she _______ TV .

　 A. does ; watches　　　　 B. is doing ; watches

　 C. does ; is watching　　　 D. is doing ; is watching

82. Will you please _______ your shoes on the floor ?

　 A. not to drop　　　　 B. not drop　　　 C. don’t drop　　 D. not dropping

81. Cars and buses _______ stop when the traffic lights are red .

　 A. can　　　 B. need　　　 C. must　　 D. may

80. He _______ wait until the rain _______ .

　 A. won’t ; will stop　　　　　 B. won’t ; stop

　 C. will ; stops　　　　　 D. will ; will stop

79. - Hi , Kate .

　 　- Hi , Mary . I _______ you were here .

　 A. don’t know　　　 B. don’t think　　 C. think　　 D. didn’t know

78. I can’t understand _______ the boy alone .

　 A. why she left　 　　　　B. why did she leave

　 C. why had she left　　　　　 D. why she had left

77. Mother said that cooking _______ much time every day .

　 A. paid　　　 B. spent　　　　 C. made　　　　 D. took

76. The doctor did what he could _______ that child .

　 A. save　　　 B. to save　　　　　 C. saved　　　　 D. saving

75. - You must come back every month .

　 - Yes , I _______ .

　 A. will　　　 B. must　　 C. should　　　　 D. can