第1题
A、ruined
B、was ruined
C、had been ruined
D、having ruined
第2题
A、kept watched
B、out watched
C、watched over
D、in the watch
第3题
Today the public is much concerned about the way ________.
A) nature is being ruined
B) which nature is ruined
C) on which to ruin nature
D) of nature to be ruined
第5题
A. Pedestrians passed by.
B. Cars Were moving slowly in the street.
C. Policemen patrolled the street.
D. Garbage cans were kept from the street.
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