[ Modals ]
My classmates just raised her hand.
A. She must know the answer.
B. She must be know the answer.

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PronounsAdjectives and ArticlesWh QuestionsAdverbs and PhrasesConjunctions in Complex SentencesDefinite and Indefinite ArticlesPronouns, Sentence Structure, and ApostrophesLinking Verbs & Helping VerbsPunctuation and GrammarNoun PhraseOther quiz:
Grammar › ViewHis family is rich. They have got four ____ .
A. houses
B. house
C. house’s
Active and Passive Voice › View
I don’t appreciate ________ when I’m speaking.
A. being interrupted
B. to be interrupted
C. interrupt
D. interrupting