Topics: Tenses & Affixes
Choose the correct answer for each question.
What does “pollution” mean?
A. The act of cleaning something
B. The act of making something dirty
C. The act of fixing something
Select your answer:

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Vocabulary › ViewDIAMETER
A. ENLARGED OR EXPANDED FROM PRESSURE
B. THE DISTANCE ACROSS THE CENTER OF AN OBJECT
C. DISTINCT, SEPARATE
Grammar › View
It’s two years ________ Joe.
A. that I didn’t see
B. that I haven’t seen
C. since I didn’t see
D. since I saw
