Some scientists have questioned the theory ______ CO2 is causing dangerous global warming.
#68429
A
which
B
what
C
that
D
why
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There’s no doubt _______ Emily will be the hostess (女主持) of the New Year’s party.
#41074
A
if
B
when
C
what
D
That
It is reported that no problems have been discovered in milk products such as Yili, Sanlu and Mengniu, ________ proves newly-produced liquid milk safe.
#74383
A
that
B
what
C
which
D
where
A terrible earthquake happened in that district at the end of 2004, ____ many countries in the world paid close attention to this.
#73409
A
where
B
when
C
which
D
what
— Are you still thinking about the email Tony sent you yesterday？— Oh，to tell the truth,that’s makes me feel excited.
#69232
A
What
B
how
C
that
D
why
Why not stay at home the road is so slippery after the heavy snow?
#69407
A
when
B
unless
C
even if
D
now that