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.The newly-published book ______thirty maps, __________five of Japan.
A. contains; including B. is containing; including
C. includes; contains D. contains; included
7. Mary is being punished by the headmaster. That was______ she broke the school rules.
A．why B．because of C．the reason why D．because
