單項(xiàng)選擇題

He took（）part in the activity.

A.an active
B.a dynamic
C.a positive
D.energetic

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單項(xiàng)選擇題

The heavy rain（）the road.

A.hurt
B.injured
C.damaged
D.hazard

單項(xiàng)選擇題

He is not aware（）what he has done.

A.for
B.to
C.about
D.of