(2013·安徽，21)From space, the earth looks blue.This is ________about seventyone percent of its surface is covered by water.
#79357
A
why
B
how
C
because
D
whether
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The reason________ Peng Liyuan is widely discussed recently is ________ she is seen as the most beautiful first lady in China.
#79362
A
Why; because
B
That; that
C
Why; that
D
why; why
Actually girls can be _________ they want to be just like boys, whether it is a pilot , an astronaut, or a general manager.
#79504
A
wherever
B
whoever
C
whatever
D
whichever
Is this research center _________ you met some foreign guests last week?
#79484
A
that
B
where
C
which
D
in which
What we really concern is _____ those orphans can recover from the earthquake psychologically.
#79392
A
that
B
if
C
why
D
whether
The toughest thing about success is _______ you have to keep on being a success.
#79506
A
that
B
when
C
what
D
why