[ Modals and Active and Passive Voice ]
. ____refers to a duty or responsibility to do something, where you have no choice but to comply.
A. Obligation
B. Ability
C. Permission
D. Prohibition

Random Topics:
Has Got & Have GotAdjective SuffixesPresent Simple/AffirmativeIf Conditional Zero and OneVerbal PhrasesPast PerfectVocabulary Spelling GrammarPresent and Past TensesVerbs - third personGrammar - Collective NounsOther quiz:
Grammar › ViewIs it ____________for Brooks to cheat off Autumn’s test?
A. amoral
B. immoral
Verb Tenses › View
Identify the tense of the underlined verb phrase in the sentence.
He had been working all day when he decided to go home.
A. present perfect-progressive
B. past perfect-progressive
C. future perfect-progressive
D. past perfect
E. present progressive
