[ Grammar ]
The percentage of unemployed workers _______ in 2010.
A. has remained unchanged
B. remained unchanged
C. remained unchange
D. has remained unchange

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Passive with ModalsSimple Present Negative and QuestionPast simple - Irregular VerbsFuture Tense (will/be going to/p.continuous)Simple Past TensePhrasal Verbs and GrammarGerund or to InfinitiveGrammar- Later/LatterGrammar: AgreementPassive Voice, Question Tag, PrepositionsOther quiz:
Basic Tenses › ViewMy grandmother _________ 10 years ago.
A. has died
B. died
C. had died
D. was dying
Preposition › View
Many students queued up __________ the hall to donate blood.
A. through
B. inside
