[ Grammar ]
Our research measures the impact of_______ on this particular eco-system.
A. human activity
B. sea level
C. greenhouse gas
D. global warming
Select your answer:
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Other quiz:
Grammar › ViewIt is ___ to be at Ruth’s house.
a. go
b. going
c. gonna
Grammar › View
Which part needs to correct?
My brother usually ask me for help when he has difficulty with his homework.
A. ask
B. when
C. difficulty
D. homework
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