There was no sign _______ they had died from diseases such as bird flu - the main worry in such cases. Among the theories was _______ a truck had collided(碰撞)with the crowd.  
#67815
A
/; that
B
that; that
C
that; which
D
that; /
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 The story is very interesting, and it is _______.
#69526
A
well worth reading
B
well worthy of reading
C
very worthy reading
D
worth to read
Can you tell me ______the railway station?
#72730
A
how I can get to
B
how can I get to
C
where I can get to
D
where can I get to
     you may have , you should gather your courage to face the challenge .
#67965
A
However serious a problem
B
Whatever serious a problem
C
However a serious problem
D
No matter how a serious problem