His____ madethesituationworse.
A. arrival
B. arrived
C. arrives
D. arriving
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The method is ____to me .
A. help
B. helpful
C. helping
D. helps
The ____ of the river is 30 meters.
A. width
B. wide
C. widen
D. wided
We should be____of the thief.
A. care
B. caring
C. cared
D. careful
Such changes have not been seen since the____of the printingpress.
A. invention
B. invented
C. invent
D. inventing