[ Grammar ]
It is our responsibility to ________ our planet’s ecosystems.
A. preserve
B. preservation
C. preserving
D. preserver
Random Topics:
Contrastive ConjunctionRelative Pronouns with PrepositionsAdverbial Clauses of Reason / CauseGrammar - Present Perfect with already, just, yetVocabulary, Grammar, SpellingVerb & GrammarTo Infinitive/Bare Infinitive/GerundsMixed TensesConjunctionwill, be going to, would like toOther quiz:
Grammar › ViewThere used __________ a stadium here, but it closed a long time ago.
A. be
B. to be
C. been
D. being
Grammar › View
Liz ___________ play her guitar 2 months ago, but now she can play it well.
A. couldn’t
B. could
C. can’t