Millions of Americans flock to their drugstore to buy vitamins and minerals, （）that these pills can help to prevent serious illnesses.

单项选择题If they had sent a check to the telephone company last week, their telephone （）out of service at this moment.

A．will not be
B．will not have been
C．would not be
D．would not have been

单项选择题The extensive survey suggested that their assumptions （）totally wrong.

A．were
B．be
C．was
D．would be

单项选择题The first Olympiad is said to have consisted （）of a 200-yard foot race near the small city of Olympia.

A．nearly
B．completely
C．merely
D．identically

单项选择题Undoubtedly, （）wins the election is going to have a tough job getting the economy back on its feet.

A．anyone
B．who
C．whoever
D．everyone

单项选择题Many old people in the cities find themselves unable to get used to the rapid （）of city life.

A．rate
B．speed
C．step
D．pace