[ Modals of Deduction ]
It’s very loud in the house; the children ____________ taking a nap.
A. must
B. can’t be
C. might not be

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InfinitivesGerunds/InfinitivesAdverb Clause ConnectorTenses: Present simple, Past Simple, Future SimpleAuxiliary and Modal VerbsWill & Be going toPassive Voice, Question Tag, PrepositionsPresent Simple with Adverbs of FrequencyZero ConditionalModals, Phrasal Verbs, Gerunds and InfinitivesOther quiz:
Grammar › ViewIt took us about half an hour to get to school.
A. How long did the take us to get to school?
B. How many times did the take us to get to school?
C. How far did the take us to get to school?
Auxiliary Verbs › View
Which verb to have do the I, YOU, WE and THEY pronouns use?
A. has
B. have