[ Vocabulary & Grammar ]
Chemical substances which are pumped into rivers and lakes by factories are known as ____________________.
A. oil spill
B. fossil fuels
C. toxic waste
D. acid rain
Select your answer:

Random Topics:
Gerund and To InfinitiveModal Verbs of Certainty and PossibilityPronoun Antecedent AgreementAsking for and Giving OpinionMixed GrammarAdverbial Clauses of Reason / CauseAdverbs of How Something is DonePunctuationPast Perfect TensesTOEIC GrammarOther quiz:
Grammar › ViewWe____stay long because we have to go to the store before it closes
A. can’t
B. must
C. might
Noun and Pronoun › View
….. friends are so smart, I like them so much
A. I
B. my
C. me
D. mine
