Since no other way to escape from the flood, ____ only safe thing is to take ____chance.
#4680
A
an ; 不填
B
the ; a
C
an; a
D
不填;the
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Is this the reason__________at the meeting for his carelessness in his work?
#4971
A
he explained
B
what he explained
C
how he explained
D
why he explained
Rose asked Tom, “Did you see my purse?”  Rose asked Tom ___. 
#4658
A
whether that he had seen her purse
B
whether he had seen her purse
C
that whether he had seen her purse
D
that if he has seen her purse