{"id":"cb_practice_pdf:t10-english-m2-q24","source_id":"cb_practice_pdf","source_item_id":"t10-english-m2-q24","external_id":null,"ibn":null,"question_id":null,"program":"SAT","module":"english","domain_code":null,"domain":null,"skill_code":null,"skill":null,"difficulty":null,"score_band":null,"answer_type":"mcq","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-10","module_number":2,"position":24,"stem":"Mathematician Grigori Perelman, sometimes in conjunction with mathematicians Richard S. Hamilton and Shing-Tung Yau, _______ credited with proving the Poincaré conjecture. Having built on Hamilton’s previous work to solve the proof, Perelman has insisted that Hamilton receive credit. Yau later found and closed gaps in Perelman’s proof, persuading some mathematicians that he deserves credit as well. Which choice completes the text so that it conforms to the conventions of Standard English?","stimulus":"","stimulus_html":null,"stem_html":"<p>Mathematician Grigori Perelman, sometimes in conjunction with mathematicians Richard S. Hamilton and Shing-Tung Yau, _______ credited with proving the Poincaré conjecture. Having built on Hamilton’s previous work to solve the proof, Perelman has insisted that Hamilton receive credit. Yau later found and closed gaps in Perelman’s proof, persuading some mathematicians that he deserves credit as well. Which choice completes the text so that it conforms to the conventions of Standard English?</p>","rationale_html":"<p>Choice D is the best answer. The convention being tested is subject-verb agreement. The singular verb “is credited” agrees in number with the singular subject “mathematician Grigori Perelman.” Choice A is incorrect because the plural verb “are credited” doesn’t agree in number with the singular subject “mathematician Grigori Perelman.” Choice B is incorrect because the plural verb “have been credited” doesn’t agree in number with the singular subject “mathematician Grigori Perelman.” Choice C is incorrect because the plural verb “are being credited” doesn’t agree in number with the singular subject “mathematician Grigori Perelman.”</p>","correct_answer":["D"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>are</p>","ord":0},{"label":"B","content_html":"<p>have been</p>","ord":1},{"label":"C","content_html":"<p>are being</p>","ord":2},{"label":"D","content_html":"<p>is</p>","ord":3}],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}