Man may destroy the balance of nature, but, from time to time, nature takes a terrible______.
A.revenge
B.attack
C.change
D.warning
I was in a puzzle and_______ to know w here he had been.
A.living
B.pressing
C.plucking
D.dying
This mean act of his is quite of a _______with his conduct generally.
A.sheet
B.piece
C.bit
D.part
The legend of 1900 tells the story that happened in 1900.
A. 对
B. 错