[ Vocabulary ]
Greenpeace is an international group that protests against anything which is a ____ to the environment.
A. threat
B. threaten
C. threatening
D. threatener

Random Topics:
Grammar and ReadingDependent PrepositionsPhrases and ClausesVocabulary, Grammar, SpellingSimple Present and Simple PastFrequencyUse of Prepositions or ConjunctionsObject PronounsThe Future Simple TenseModals of ProbabilityOther quiz:
Grammar › View_____________I go out for a moment? I need to make important phone call.
A. May
B. Will
C. Should
D. Might
Common Grammar Mistakes and Spelling Tips › View
The points where you’d pause in a spoken sentence aren’t always where you’d use a comma in a written sentence.
A. TRUE
B. FALSE
Grammar › ViewWe ____________ during recess.
A. chated
B. chatted
C. didn’t chatted
D. chatten
Superlative Adjectives › View
The cats are the ______________ pets in Malaysia.
A. common
B. commenest
C. most common
D. most commenest