[ Present Perfect Tense ]
We ________ in this school since 1990.
A. worked
B. have working
C. has worked
D. have worked

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Linking Words and PhrasesQuestion TagGrammar speak,talk,say,tellGrammar: Imperative and Exclamatory SentencesPast Tense and Past ContinuousVerb & GrammarGrammar SuffixesModals of AdviceTenses and OpinionsDegree of ComparisonOther quiz:
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Pass the salt ___.
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