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There is a bird        in the sky.
#50711
A
fly
B
flying
C
flies
D
to fly
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On Sunday I have to go to the farm        my parents.
#49751
A
to help
B
help
C
helping
D
helped
 It looks _________ people _________ the work.
#48608
A
hundreds of, finishing
B
hundred of, to finish
C
hundreds of, to finish
D
hundred of, finishing
 Hainan Island is a good place_____.
#49976
A
go sightseeing
B
go sightsee
C
to go sightseeing
D
to go sightsee
It's time for dinner, Linda. Let's ________ out this evening.
#49542
A
eat
B
to eat
C
eating
D
have
It is necessary _____ something to protect our environment.
#50188
A
do
B
to do
C
does
D
doing