1.Intellect is to the mind____sight is to the body.(a)

1.Intellect is to the mind____sight is to the body.(a)
a.what
b.which
c.that
d.like
请问这句话是什么意思,为什么选a?a充当了什么成分?
2.The factory has turned out____.(c)
a.twice TV sets this year more than last year
b.TV sets this year twice as many as last year
c.twice as many TV sets this year as last year
d.TV sets twice more this year than last year
3.I regret____you that I cannot go to Hangzhou for a visit next Sunday with you,because I have caught a bad cold.(a)
a.to tell
b.telling
c.leaving
d.to leave
请问为什么不选b?
4.After leaving the art college,she ____as an interior designer.(c)
a.took up
b.got up
c.set up
d.put up
5.This is the____piano on which the composer created some of his greatest works.(b)
a.true
b.original
c.real
d.genius
6.______allowing for his age,he still acts very immaturely.(d)
a.But
b.Yet
c.Although
d.Even
(为什么不能用BUT?)
7._____ghost exists in the world.That's your illusion.(d)
a.No such a thing as
b.No such a thing as a
c.No such thing as a
d.No such thing as
8.The_____in David's character has hindered him from advancing in his career.(d)
a.weakness
b.shortcoming
c.demerit
d.defect
(这几个词有什么区别?怎么区分?为什么不选a要选d?)