Although his leg hurt, Amada finished the race.
A.In spited of a pain in his leg, Amada finished the race.
B.Amada may have hurt his leg, but he finished the race.
C.The more his leg hurt, the more Amada tried to finish the race.
D.Despite having finished the race, Amada's leg hurt.

My brother quickly adapted to his new job at the bank.
A.My brother was used to adapting to new jobs at the bank quickly.
B.My brother's new job at the bank was easy for him to adapt to.
C.My brother quickly got used to his new job at the bank.
D.My brother's new job at the bank could be adapted to immediately

It was to be another twenty-five years before Michael returned to his home town.
A.It is twenty-five years since Michael returned to his home town.
B.Michael returned to his home town nearly twenty-five years ago.
C.People in Michael's home town have been waiting for him to return for twenty-five years.
D.Not until twenty-five years later did Michael return to his home town.

He seems not to care about anything.
A.He acts as if nothing could be a matter with him
B.He acts as if nothing matters to him.
C.Nothing is of any importance to him.
D.He pretends to care about nothing.

The word "those" in paragraph 1 refers to:
A.nitrates
B.properties
C.particles
D.models

In the scientists' research, where did the pollutants come from originally?
A.arid areas
B.the Saudi Coast
C.Cairo
D.the Sahara desert

What is the purpose of the passage?
A.to convince the reader that calcium nitrate is bad
B.to inform the reader of a new problem in climate modeling
C.to show how calcium nitrate was created
D.to show where calcium nitrate was first discovered

What is the main idea of the first paragraph?
A.Signs of aging are easier to detect in animals than in plants.
B.Aging occurs in every living thing after it has reached maturity.
C.Not all signs of aging are visible.
D.The outward signs of aging may be seen in old people.

All of the followings may be the outward signs of aging EXCEPT ___________ .
A.the graying of the hair
B.the wrinkling of the skin
C.the decline in hearing and eyesight
D.the loss of appetite

What happens to memorization when the brain begins to age?
A.It works less.
B.It becomes forgetful.
C.It declines.
D.It slows down.