[ Passive Voice and Modals ]
Marie Curie discovered _____________________.
A. radioactiviti
B. radiumactivity and vibranium
C. radioactivity
D. radioactivity and adamantium
Select your answer:

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Subject/Verb Agreement with Collective NounsIndirect SpeechModal Verbs and Contrastive ConjunctionsUse of Prepositions or ConjunctionsGrammarKinds of SentencesPast Simple - Present PerfectWh-QuestionModal VerbsArgumentative VocabularyOther quiz:
Vocabulary › Viewmixture of smoke and fog
A. emissions
B. smog
C. acid rain
D. sewage
Modals for Advice, Obligation/Prohibition, Necessity and Lack of Necessity › View
Which answer is incorrect? ‘Should Alan go on Big Brother?’ ‘_______’
A. Yes, he should.
B. Yes, he ought to do it.
C. No, I don’t think he should.
D. No, I think he oughtn’t.
