[ Grammar ]
They _____ at this conference for the last two days.
A. have been
B. were
C. are
D. be
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Simple Past Tense and Past Perfect TenseModal VerbSpeculation with Modal VerbsAuxiliary Verbs, if, unless and ModalAdverbial ClauseComparatives - SuperlativesSentence Adverbs & Third ConditionalPresent PerfectFigure of SpeechModals - Reported Speech - ConditionalsOther quiz:
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_____ in the pool, the children were having a lot of fun.
A. Being swum
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_____ time do you usually get up?
A. What
B. When
C. How