[ Grammar ]
The gas from the chemical factory was extremely _____.
A. harm
B. harmful
C. harmless
D. harmfully
Select your answer:

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Present Perfect Simple and ContinuousPerfect TenseGrammar (Possessive Pronouns)Wish SentenceVerb PatternsPrepositions of Time & PlacePresent TensesPast Tense & Past Continuous TensePassive with ModalsGrammarOther quiz:
Past Simple › ViewChoose the correct negative sentence. I saw a great movie on Sunday.
A. I didn’t see a great movie on Sunday.
B. I didn’t saw a great movie on Sunday.
C. I don’t see a great movie on Sunday.
Grammar › View
______(play) football is great activity to enhace muscle strengh.
A. Playing
B. To play
