[ Modal Verbs ]
The book is optional. My professor said we could read it if we needed extra credit. But we_______________ read it if we don’t want to.
A. don’t have to
B. must not
C. cannot

Random Topics:
Regular and Irregular AdverbAdverbs, Infinitives, Definite ArticleVocabulary and GrammarAdverb or AdjectiveGrammar - ConnectorsNoun Clauses with THATComparatives and ConjunctionsSimple and Continuous Present TenseVerb and PrepositionGerund & InfinitivesOther quiz:
Past Continuous Tense › ViewThe teacher was angry because some students ___________ football in the class when he came in.
A. are playing
B. played
C. have played
D. were playing
Modals of Advisability › View
We _____ leave now or we’ll miss the train.
A. had better
B. could
C. should
D. must
Future Continuous Tense › ViewAt nine I …………. the news.
A. watching
B. be watching
C. will be watching
D. am going to
Grammar › View
He said he _______ return later.
A. will
B. would
C. can
D. would be
