Before the earthquake, mice ran out of the fields ________ for places to hide.
#90164
A
look
B
looking
C
looked
D
were looking
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He had an accident ______ to work and was badly injured.
#95074
A
driving
B
driven
C
to drive
D
drove
Jack became seriously ill after ________ in polluted air for many years.
#89778
A
breathed 
B
breath 
C
breathing 
D
to breathe
Did you have trouble ________the post office?
#88320
A
to have found
B
with finding
C
find
D
in finding