[ Modals ]
My back has been hurting for weeks. I__________go to the doctor’s.
A. don’t have to
B. have to
C. mustn’t
D. must
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Passive of Modal VerbsTenses and VoiceGerund - to Infinitive Complex Sentences with Adverb ClausesGrammar - Capitalization and Possessive NounsPhrase and ClauseCan, Could, May, MightInterrogative Pronouns & AdverbsJobsComparatives, Superlatives & EquativesOther quiz:
Grammar › ViewYou _______ playing football. You were listening to music in your room.
A. weren’t
B. was
C. were
D. wasn’t
Vocabulary › View
a physical system that does not allow transfer of matter in or out of the system
A. conservation of matter
B. closed system
C. reactant
D. chemical reaction