[ Grammar ]
Currently, I……… a research into air pollution in our town.
A. does
B. do
C. did
D. am doing

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Grammar and Structure › ViewHe —– Tim tommorrow.
A. is
B. meets
C. isn’t meeting
D. meet
Subject-Verb Agreement › View
Three-quarters of the student body __________ against the tuition hike.
A. Is
B. Are
