{"id":"cb_practice_pdf:t5-english-m1-q21","source_id":"cb_practice_pdf","source_item_id":"t5-english-m1-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-5","module_number":1,"position":21,"stem":"In 1929, Edwin Herbert Land invented a polarizing filter that was featured in a number of products, from sunglasses to 3D movies. A decade later, Land _______ his technology to invent the world’s first instant camera, the Polaroid Land camera. Which choice completes the text so that it conforms to the conventions of Standard English?","stimulus":"","stimulus_html":null,"stem_html":"<p>In 1929, Edwin Herbert Land invented a polarizing filter that was featured in a number of products, from sunglasses to 3D movies. A decade later, Land _______ his technology to invent the world’s first instant camera, the Polaroid Land camera. Which choice completes the text so that it conforms to the conventions of Standard English?</p>","rationale_html":"<p>Choice A is the best answer. The convention being tested is the use of verb forms within a sentence. A main clause requires a finite (tensed) verb to perform the action of the subject (in this case, Land), and this choice supplies the finite past tense verb “used” to indicate what Land did with the technology he had invented. Choice B is incorrect because it results in an ungrammatical sentence. The nonfinite perfect infinitive “to have used” doesn’t supply the main clause with a finite verb. Choice C is incorrect because it results in an ungrammatical sentence. The nonfinite to-infinitive “to use” doesn’t supply the main clause with a finite verb. Choice D is incorrect because it results in an ungrammatical sentence. The nonfinite participle “using” doesn’t supply the main clause with a finite verb.</p>","correct_answer":["A"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>used</p>","ord":0},{"label":"B","content_html":"<p>to have used</p>","ord":1},{"label":"C","content_html":"<p>to use</p>","ord":2},{"label":"D","content_html":"<p>using</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}}