[ Grammar ]
Is the following noun concrete or abstract?
“bicycle”
___
A. concrete
B. abstract

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Passive Voice - Present TensesNoun QuantifiersIndefinite and Intensive NounIf ConditionalsSimple Past Tense and Present Continuous TenseTransitional WordsHabitual and Continuous TensesTenses UsagePhrasal VerbsThe First Conditional SentenceOther quiz:
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I can understand his concern.
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If people used cars less, the air … much cleaner.
A. would be
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