[ Grammar & Vocabulary ]
We _______ pay attention and _______ chat when the teacher is teaching.
A. must not, should
B. must, ought to
C. ought to, must not

Random Topics:
Past Tense vs Present Perfect TenseGerunds as Objects of PrepositionsQuantifiers MixSentences and Non SentencesTenses and ArticlesMiscellaneous Grammar UsagesGrammar ElementaryComplex SentencesAnalogyVerbs and Subject Verb AgreementOther quiz:
Modal Verbs › View____you bring me a glass of cold water?
A. can
B. should
C. might
D. could
Past and Perfect Tenses › View
Yesterday, they ______ (not/go) to school.
A. not go
B. didn’t go
C. haven’t gone
Future Tenses and Modals › ViewChoose the correct sentence: “We ______ (have) dinner at 7 PM tomorrow.”
A. have
B. are having
C. will have
D. going to have
Grammar › View
They ____________ home from school everyday
A. walk
B. walks
C. walking
