If the balance of nature is ____ , a series of problems will arise . 
#77442
A
disturbed
B
troubled
C
interrupted
D
confused
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Can you give us an example to _____the meaning of the word?
#83683
A
find out
B
make out
C
bring out
D
take out
He sat there with his attention          the wonderful view of the city.
#73827
A
focusing on
B
focusing in
C
focused in
D
focused on