[ Grammar ]
Have you ever heard about the __________ of radioactive pollution?
A. affects
B. effects
C. cause
D. poison
Select your answer:
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Grammar › ViewThe Nile is the longest river _____ the world.
A. of
B. in
C. by
Grammar - direct/indirect objects › View
Identify the object of the preposition in the following sentence:
Janice and Carla spent the day at the mall.
A. Janice
B. Carla
C. day
D. mall