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

Random Topics:
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:
Reported Speech › View” We are not visiting China this summer” He told me.
A. He told me that they were not visiting China that summer.
B. He told me that they were not visiting China this summer.
C. He told me that they are not visiting China that summer.
Present Perfect Tense › View
She _________________ ten pages already.
A. has wrote
B. has written
C. writed
D. wrote
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
