[ Present Perfect Simple & Present Perfect Continuous ]
Animal conservation ___ more important in the last 100 years
A. became
B. has become
Select your answer:

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Modals for Ability, Possibility and PermissionGrammar and Sentence CorrectionVocabulary and GrammarPhrasal Verbs and GrammarSimple Present Tense/be/Present ProgessiveFuture or PastActive and PassiveKinds of NounsPresent Perfect ContinuousSentence Structure and ConjunctionsOther quiz:
Vocabulary › Viewa strong verbal reprimand or scolding
A. exempted
B. chastisement
C. ritual
D. relinquish
Grammar › View
Choose the correct subject pronoun for the underlined words. The dog plays on the ground.
A. he
B. it
