[ Vocabulary and Grammar ]
Global warming is a serious __________ to the planet.
A. scene
B. appreciation
C. threat
D. digest
Select your answer:
Random Topics:
Gerunds and InfinitivesToo or EnoughSimple Present and Present ContinuousMorphology and GrammarNoun PhrasesSentence TypesGerund vs InfinitiveTo Infinitive or Bare InfinitiveVocabulary : Coming & GoingPresent and Past TensesOther quiz:
Gerunds, Infinitives and Modals of Possibility › ViewHe ___ go to the concert if he finishes his work.
A. must
B. might
C. should
D. has to
Grammar › View
George and Tamara _________ want to see that movie.
A. doesn’t
B. don’t