Topics: Grammar Modals
Climate change could _____ the survival of blue whales.
A. being threat
B. threaten
C. have been threatened
D. threat
Select your answer:

Random Topics:
Participal PhrasesTime and CalendarReflexive pronounsPreposition & GerundPast Tense and NeutralLinking VerbsVerb & GrammarQuestion tag and + - AgreementEnglish for TourismGrammar and EssayOther quiz:
Grammar › ViewThe sky is cloudy. It _______ raining tonight. I’m not sure.
A. must be
B. might be
Tenses › View
X: The whiteboard is dirty. any volunteer?
Y: I ________ it.
A. clean
B. am going to clean
C. will clean
D. cleaned
