[ Grammar ]
Someone has been moving around just now. Do you … him?
A. knew
B. has knew
C. know
D. knows

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ComparisonsPast Tense and Perfect TensePresent Simple and ContinuousRelative Clauses and Past PerfectGrammar, Conditional Sentences, VocabularyPast Simple vs Present SimpleTenses and PronounsTenses UsagePresent Forms and Narrative TensesAdverbs, Prefixes, and SuffixesOther quiz:
Correlative Conjunctions › View________did I miss my flight,______ I _______lost my passport.
A. neither/nor
B. Both/and
C. whether/or
D. not only/but also
Prepositions › View
Choose the correct answer.
The air at the seaside is good ________ health.
A. at
B. for
C. on
D. of