{"id":"cb_practice_pdf:t9-english-m2-q21","source_id":"cb_practice_pdf","source_item_id":"t9-english-m2-q21","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-9","module_number":2,"position":21,"stem":"Interest in mechanotransduction, the mechanism by which cells sense and convert mechanical stimuli into biochemical signals, is expanding because of innovative work by biomedical scientists—many of whom, like neuroscience and biophysics expert Elba Serrano, _______ this mechanism to better understand how the body’s neurological and biomechanical systems interact. Which choice completes the text so that it conforms to the conventions of Standard English?","stimulus":"","stimulus_html":null,"stem_html":"<p>Interest in mechanotransduction, the mechanism by which cells sense and convert mechanical stimuli into biochemical signals, is expanding because of innovative work by biomedical scientists—many of whom, like neuroscience and biophysics expert Elba Serrano, _______ this mechanism to better understand how the body’s neurological and biomechanical systems interact. Which choice completes the text so that it conforms to the conventions of Standard English?</p>","rationale_html":"<p>Choice C is the best answer. The convention being tested is the use of verb forms within a sentence. The plural verb “study” agrees in number with the plural subject “many.” Choice A is incorrect because the singular verb “is studying” doesn’t agree in number with the plural subject “many.” Choice B is incorrect because the singular verb “has studied” doesn’t agree in number with the plural subject “many.” Choice D is incorrect because the singular verb “studies” doesn’t agree in number with the plural subject “many.”</p>","correct_answer":["C"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>is studying</p>","ord":0},{"label":"B","content_html":"<p>has studied</p>","ord":1},{"label":"C","content_html":"<p>study</p>","ord":2},{"label":"D","content_html":"<p>studies</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}}