The committee has made rules （）all its members are supposed to work.

单项选择题They were married for fifteen years but have now _______up and live apart.

单项选择题I set off as soon as I got the news about my grandpa's illness. Unfortunately, he _________at the hospital before I ____.

单项选择题The shipping authorities followed the ________of the unidentified submarine on their radar screens.

单项选择题Oil sales volume in local urban and rural areas rose by 24% and 50% ________, over July 2006.

单项选择题We'll never get to the station on time we run as fast as we can.

单项选择题I don't believe in Brown's adventure at all. It sounds so___ .

单项选择题Does brain power_________ as we get older Scientists now have some surprising answers.

单项选择题I don't think__________ possible to master a foreign language without much memorywork.

单项选择题If I lose my new watch my parents will be very annoyed _____me.

单项选择题What' the main reason Democrats could regain control of Congress after 12 years