[ Modal Verbs ]
Students (pay) attention to the teacher if they want to learn.
A. have to
B. must
C. should
D. mustn’t

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Will vs Verb InfinitivesPassive Voice with Modal VerbsActive and Passive Gerunds and InfinitivesFigurative LanguageConjunctions and PrepositionReported Speech and TensesSimple Present and Present ContinuosClauses and ConjunctionMust or Mus notComparative AdjectivesOther quiz:
Grammar › Viewhoose the correct adverbs of manner to complete the sentences.
The pupils did their homework _________ in the library.
A. silently
B. quickly
C. carefully
D. tidily
Grammar › View
The judge _____ the sentence later today.
A. has passed
B. had passed
C. am passing
D. will pass
Grammar › ViewWe keep the …………… copies of all our reports in a special master file.
A. primitive
B. characteristic
C. original
D. elder
Modals of Obligation & Prohibition › View
He _____ wear a helmet when riding his bike.
A. must
B. can
