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

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Grammar TOEFLGrammar - used toVerb Tense, Pronouns and AntecedentsAlong & AgainstWish - beginnerPossessive Adjectives and Possessive PronounsVerb PhrasesPresent simple, Present continuous, Singular, PluralGrammar Like & Linking VerbDeterminers & QuantifiersOther quiz:
Present Simple › ViewPresent simple describes about:
A. past events, former habits
B. general facts, repeated actions and habits, things that are always true.
Grammar › View
…. is good at tennis.
A. We
B. They
C. He
D. Him
Communicative Grammar › ViewThey shut down the factory because so many people ——– of dangerous smoke.
A. died
B. were dying
C. are dying
D. had died
Grammar › View
If you were him, you ______ it.
A. would not do
B. wouldn’t have done
C. will not do
D. do
