[ Modal Auxiliary ]
He ………….. play soccer inside the classroom. (prohibition)
A. could not
B. must not
C. can’t
D. shouldn’t

Random Topics:
Verbs + Gerund or InfinitiveComplex Sentences with Adverb ClausesGerund and To InfinitivePresent Perfect & Past Simple TenseGrammar PhrasesPresent Simple: affirmative, negative, interrogativeTo Infinitive or Gerund1st & 2nd ConditionalsModal and Modal PerfectComparatives and ConjunctionsOther quiz:
Vocabulary › ViewWhat is the meaning of the word “immortal”?
A. Mortal
B. Temporary
C. Eternal
D. Short-lived
Tenses › View
Were you going to lend her some money?
A. Simple Past Tense
B. Past Continuous Tense
C. Past Perfect Tense
D. Past Future