[ 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:
Conjunctions, Prepositions and InterjectionsAdverb and Noun ClausesVocabularySimple Present TensesSynonymInfinitivesVerbs: Will & Going toMesopotamia VocabularyPronouns and QuantifiersWish, Unless, If sentenceOther quiz:
Adjective › ViewThere are some _________ pictures in this newspaper.
A. white interesting computer-generated new
B. computer-generated white interesting new
C. interesting new white computer-generated
D. new interesting computer-generated white
Tenses › View
The research team … their groundbreaking findings at the international conference two weeks ago.
A. presents
B. will present
C. presented
D. has presented
E. is presenting
