[ 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

Random Topics:
Regular and Irregular VerbsGRAMMAR - Could / Could notVocabulary, Adjective & PrepositionConjunctions & InterjectionsCan vs CouldModal Verbs & Time PrepositionsDemonstrative PronounsGrammar - ConnectorsAdjective and AdverbGrammar - Verb FormsOther quiz:
Prepositions of Time › ViewSam always go to bed _________ midnight.
A. at
B. on
C. in
Grammar › View
My friend …………. (be) in Canada two years ago.
A. was
B. were
C. has been
D. had been
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
