Command of Evidence: Textual

SAT Reading and Writing· difficulty 4/5

Linguist Dr. Bhatt proposes that bilingual children acquire grammatical structures unique to each of their languages without confusion, in contrast to a long-standing belief that bilingual children mix grammars and develop more slowly.

Which finding, if true, would most strongly support Dr. Bhatt's proposal?

  • A

    When tested separately in each language, bilingual children produced age-appropriate grammatical structures and rarely transferred rules from one language to the other.

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  • B

    Bilingual children sometimes use vocabulary words from one language while speaking another.

  • C

    Some bilingual children begin speaking later than monolingual peers.

  • D

    Bilingual adults often switch languages mid-sentence in casual conversation.

Explanation

A directly shows separate grammatical competence with little crossover, supporting Bhatt's proposal. C and D could be cited by skeptics; B is about lexicon, not grammar.

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