1.Three quarters of the population in China( )farmers.
A.am
B.is
C.are
D.be
2.Ten years( )a long time.
A.am
B.is
C.are
D.be
3.The girl with her brother( )got back.
A.have
B.has
C.was
D.has been
4.There's( )deer on the hill.
A.a few
B.alittle
C.some
D.few
5.One of his( )is well worth reading.
A.work
B.jobs
C.works
D.job
6.Either English or physics( )difficult.
A.is
B.are
C.was
D.were
7.There're plenty of( )in his field.
A.potatoes
B.potatos
C.sheeps
D.childs
8.We have never been to( ).
A.China
B.the children's palace
C.Uncle Wang
D.a fish and chips shop
9.( )are everywhere.
A.Apples trees
B.Mouse
C.Leaves
D.German
10.I'm sad to hear the( )of your cat.
A.die
B.dying
C.death
D.dead

1.Three quarters of the population in China(C)farmers.
A.am
B.is
C.are
D.be
当主语是表示\"人口的百分之几、几分之几\"时,谓语动词用复数形式。例如:
About seventy percent of the population in China are farmers. 中国大约有百分之七十的人口

2.Ten years(B )a long time.
A.am
B.is
C.are
D.be
TEN YEARS看做一个整体象一段时间路程都看做整体,用单数.
3.The girl with her brother(B )got back.
A.have
B.has
C.was
D.has been
主语是THE GIRL,根据主谓一致选HAS.
4.There's(B)deer on the hill.
A.a few
B.alittle
C.some
D.few
DEER是单复同行的词,前面用的是IS,所以用A LITTLE.
5.One of his(B )is well worth reading.
A.work
B.jobs
C.works
D.job
6.Either English or physics(A )difficult.
A.is
B.are
C.was
D.were
就近原则.
7.There're plenty of(A )in his field.
A.potatoes
B.potatos
C.sheeps
D.childs
POTATO,TOMATO复数都加ES
8.We have never been to(A ).
A.China
B.the children's palace
C.Uncle Wang
D.a fish and chips shop
9.(C )are everywhere.
A.Apples trees
B.Mouse
C.Leaves
D.German
A应该是APPLE TREES,B应该是MICE.
10.I'm sad to hear the(C )of your cat.
A.die
B.dying
C.death
D.dead
是名词.