— Mr White has been working all the morning with no rest.— He is a(n) ________ man. He never looks tired.
#19705
A
energetic
B
powerful
C
lovely
D
attractive
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It is______ these stories can amuse her. 
#20297
A
sure
B
surely
C
certain
D
eager
Air is________and of no smell but we can feel its motion when there is a wind. 
#19675
A
unavoidable
B
unavailable
C
unaccessible
D
invisible