请说明理由

请说明理由
1.we believe that a lot of unexpected troubles and embarrassments will arise in the final race,because this is the first time Shanghai __C__ the F1
A.had held
B.holding
C.has held
D.to hold
2.She couldn't read the long letter __D__ than curiosity,for she was busy.
A.more
B.less
C.rather
D.other
3.__D__ the waste paper and plastic collected by British supermarkets and business for recycling is being sent to China without any knowledge of the environmental or social costs
A.As much as a third of
B.as third much as
C.As much a third of as
D.A third as much as
4.The businessman owned Pakan Valley,where __B__ from which the main _____ of his new,life-saving medicine came
A.the green orchids grew; ingredient
B.grew the green orchids; inrgedient
C.grew the green orshide; element
D.the green orchids grew; element
5.This is __D__ they solve the problem in the country.
A.when
B.which
C.why
D.how
6.Can you make sure where __B__ the gold ring?
A.Amy has put
B.Amy had put
C.has Amy put
D.had Amy put
7.I didn't know Kevin was thinking of leaving.Well,he's gone and__C__
A.that does it
B.that's all
C.that's that
D.that's it
8.Do you want me to ask my mother __A__?
A.when she would let us go
B.where would let us go
C.where she let us go
D.when did she let us go
9.The millionaire,a__A__ fan of the film star,fell____ to give his everthing he wantde.
A.devoted; over backwards
B.devoted; over each other
C.real; on hinmself
D.real; over himsilf
10.After telling us the story,the woman who was in her seventies came to the conclusion that anyone who__D__ sympathy with love____ suffer.
A.connected; was born with
B.took; was doomed to
C.combined; was born with
D.identified; was doomed to
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