________ her fiction describes women in unhappy marriages.
A.Many of
B.A large number of
C.Much of
D.A great variety of

After I _________ finished working, I switched off the machine.
A.had
B.have
C.to have
D.having

The players' protests ________ no difference to the referee's decision at all.
A.caused
B.did
C.made
D.created

Tom. "I'm sorry. I won't be able to come". - Mary. "_____________".
A.Oh, that's annoying
B.Great
C.Sounds like fun
D.Well, never mind

_______(23)
A.Nose
B.Push
C.Run
D.Shop

_______(25)
A.out
B.on
C.through
D.up

A baby learns the meanings of words as they are spoken by others and later uses him in sentences.
A.a baby
B.others
C.him
D.they

Most oxygen atoms have eight neutrons, but a small amount have nine or ten.
A.amount
B.have
C.or ten
D.Most

What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.
A.easily
B.What we know about
C.from
D.are

We can't help feeling worried about our son.
A.We can do nothing to help our son.
B.We can't help our son stop worrying.
C.We don't worry about our son.
D.We find it impossible not to worry about our son.