None of us was good at swimming, so the crossing of this dangerous river was really a_________.
#14440
A
motivation
B
symptom
C
conflict
D
challenge
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My uncle hasn't been able to quit smoking, but at least he has_____ 
#13858
A
cut out
B
cut down
C
cut up
D
cut off
________ and we’ll get everything ready for the taking off.
#14404
A
Have one more hour
B
One more hour
C
Given one more hour
D
If I have one more hour