On Sundays there were a lot of children playing in the park, ____  parents seated together joking.
#91066
A
whose
B
their
C
which
D
where
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With a large amount of work ______, the chief manager couldn’t spare time for a holiday.
#91137
A
remained to be done
B
remaining to be done
C
remained being done
D
remaining to do
        __, Mark Twain became worldwide famous at once.
#91422
A
The novel was brought out
B
The novel brought out
C
The novel was coming out
D
The novel came out
_________, the car could not be started.
#91449
A
Having lost the key
B
He lost the key
C
The key was missed
D
The key lost