[ Tag Question ]
Somebody invented radio in 1954, ____?
A. didn’t they
B. did they
C. hadn’t they
D. has they

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Prepositions after Verbs and AdjectiveClauses of ReasonAdverb ClausesJobsDemonstrative Pronouns and Verb TensesFuture Perfect TenseAdjectives Ed and IngDescribing WordsAll, Both, Neither, None, EitherClauses and ConjunctionOther quiz:
Kinds of Nouns › Viewlanguage
A. Common Noun
B. Proper Noun
C. Collective Noun
D. Abstract Noun
Noun Phrase › View
Identify the noun phrase: “Recycling old newspapers can save trees.”
A. Recycling old
B. Old newspapers
C. Can save
D. Trees