[ Subject-Verb Agreement ]
One-third of the population here ______ increased its income in the past three years.
A. Has
B. Have
C. Has been
D. Have been

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Regular and Irregular VerbsGRAMMAR - Could / Could notVocabulary, Adjective & PrepositionConjunctions & InterjectionsCan vs CouldModal Verbs & Time PrepositionsDemonstrative PronounsGrammar - ConnectorsAdjective and AdverbGrammar - Verb FormsOther quiz:
Gerund, Infinitive, Bare Verb › ViewI enjoy_______ alone
A. be
B. being
C. to be
Grammar › View
Pick the pair of antonyms:
A. giant, huge
B. awake, asleep
C. happy, glad
D. messy, dirty