Duty is an act or a course of action that people （） you to take by social customs, law or religion.

单项选择题Nobody but Jane ______ the secret.

单项选择题Her sister （） a rich man. They （）for twenty years.

A. married with; have married
B. married to; have married
C. married; have been married
D. had married; have been married

单项选择题—When will you be through with your work．Jones —（）My boss usuallY finds something for me to do at the last minute．

A．Who knows
B．Would you help me
C．I beg your pardon
D．Anything the matter

单项选择题—How do you know that she likes singing —I often hear her ______ after class.

单项选择题People have always been（）about exactly how life on earth began.

A. curious
B. excited
C. anxious
D. careful

单项选择题There used to be a museum in the east of the city, ______

单项选择题Most people agree that the present role of women has already affected U,S. society. ______, it has affected the traditional role of men.

单项选择题When I came back, I found my bicycle was ______.

单项选择题Hainan Island is ______ largest island of China.

单项选择题Tim will call me as soon as he ______ my package.