There is an increasing______to make movies describing violence.

单项选择题—Is Blake still absent from class —I think he______be punished if he goes on with it.

单项选择题The period ranging from 1865 to 1914 has been referred to as ______ in the literary history of the United States.

单项选择题It is essential that these application ______ forms back as early as possible.

单项选择题To our surprise, the stranger ______ to be an old friend of my mother's.

单项选择题—I've not finished with my dinner yet. —But our friends（）for us.

A. waited
B. to be waited
C. waiting
D. are waiting