第二节语法和词汇知识（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
6.-----________ he be watching TV now?
------Yes, he ________ be watching TV now.
A. Must, can B. Can ,must C. Can, can D. May, must
7.There was plenty of time. She ________ .
A. mustn't have hurried B. couldn't have hurried C. must not hurry D. needn't have hurried
