Charles is believed_______ the floor yesterday; he is always helping others silently. 
#97223
A
to sweep
B
to have swept
C
having swept
D
swept
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     by a greater demand of vegetables, farmers have built more green houses.
#96670
A
Driven
B
Being driven
C
To drive
D
Having driven
Standing on top of the building, ______.
#97855
A
the whole city could be seen
B
nothing could be seen
C
we could see the whole city
D
all could be seen
In the traffic accident, his father came close to ____.
#98095
A
be killed
B
being killed
C
kill
D
killing