[ Grammar ]
Choose the correct answer for the gap:
How long ___________ your colleagues or classmates?
A. have you known
B. have you been knowing

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as...as, comparatives, superlativesGrammar - QuantiflierSentence Adverbs & Third ConditionalVerbs & Phrasal VerbsHabitual and Continuous TensesParts of SpeechConjunctive AdverbsCan vs CouldWord Form & Verb TenseGrammar SuffixesOther quiz:
Present Continuous Tense › ViewI …………………. my teeth.
A. is brushing
B. am brushing
C. are brushing
D. brush
Present Perfect Tense › View
This chef _________________ beautiful designs into four very large melons.
A. Have not carved
B. Has carved
C. Have carved
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He had the boy ___ his car.
a. wash
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Verb Tenses › View
We ___ to get to the theater on time so we wouldn’t miss the beginning of the movie.
A. hurry
B. hurryed
C. hurried