[ Vocabulary and Grammar ]
We must not __________ the river by dumping dirty dishwater into it.
A. polluted
B. pollute
C. pollutes
D. polluting
Select your answer:
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Noun PhrasePast Progressive TensePrepotitionsSimiles, Metaphors, Personification and HyperboleModals TensesAdverbial ClausesDo / Have / Can - Basic QuestionsGrammar - Present Perfect with already, just, yetDefinite vs Zero Article Abstract NounsOther quiz:
Gerunds and Infinitives › ViewShe is so excited before______her song.
A. singing
B. to sing
Grammar › View
Will you …………… at the rehearsal on Monday?
A. go
B. be
C. have