"That at least is what people say." means people __________.

A.Some women athletes are actually men.

B.Some women athletes are given hormone injections.

C.Women and men do not run or swim in the same races.

D.It is difficult to check whether women athletes are really women.

A.women are weaker than men, but faster

B.women are slower than men, but stronger

C.men are not always stronger and faster than women

D.men are faster and stronger than women

A.gasoline

B.natural gas

C.atomic power

D.animal fat

A. Plants

B.water

C.rock

D.creatures

A.stored up by the plants

B.absorbed by the earth’s atmosphere

C.stored up by the animals in the form of body fat

D.used for electric power

A.one tenth

B.one millionth

C.all that comes from the surface of the sun

D.a very small portion

A.kept up

B.kept on

C.kept to

D.kept out

A.with each have

B.each having

C.each of them have

D.with each is having

A.flare up

B.jump up

C.burst up

D.look up

A.plan

B.campaign

C.procedure

D.policy