[ Modals and Responsibilities ]
You ___ pay attention in class.
A. must
B. ought to
C. need to
D. responsible for

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Past PerfectGrammar and PunctuationInfinitives and GerundsMixed Present TensesSentences and Non Sentences�Put� Phrasal VerbFuture Tense (will/be going to/p.continuous)Conditional Sentence 0, 1Comparison and ModalsSentence StructureOther quiz:
Modal Verbs & Perfect Infinitive › View. You _______ (see) a ghost! There’s no such thing.
A. can’t have seen
B. must have seen
C. should have seen
D. might have seen
Present Tenses › View
Susan ________________ already _______________(take) the dog for a walk.
A. have taken
B. has taken
C. has taking
D. have took
Grammar › ViewIs there a plate?
A. Yes, there is.
B. Yes, there are.
C. No, there isn’t.
D. No, there aren’t.
Grammar › View
___ hour ago we met ___ history teacher.
A. A / an
B. A / a
C. An / a
D. An / an