[ Vocabulary ]
Pollution can have serious effects_________ the balance of ecosystem.
A. in
B. on
C. to
D. for
Select your answer:
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Present Progressiveused to vs be used to vs get used toMixed Present TensesPast Perfect vs Past SimpleHelping and Linking VerbsPassive Voice in Past and Present TenseTenses of VerbsPresent Perfect Simple & ContinuousSimple, Compound, Complex Sentences
Other quiz:
Indefinite Pronouns › ViewShe didn’t bring _ to the party.
A. anything
B. something
C. nothing
D. somebody
So or Such › View
His last book is not ____ interesting _____ his former one so I don’t think the book will sell as it is expected.
A. as…as
B. so…that
C. such…that
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