Set 11: Boundaries (Intermediate)
Explanation
PASSAGE
The archaeologist discovered what _______ to be a previously unknown burial chamber beneath the pyramid.
Which choice completes the text so that it conforms to the conventions of Standard English?
Detailed Answer Explanation
This question tests your understanding of sentence boundaries and punctuation. 'What' refers to a singular thing (the burial chamber). Use singular 'appears.' To determine the correct answer, examine where complete thoughts begin and end. Look for independent clauses that need proper separation. A period, semicolon, or appropriate conjunction can correctly join or separate these ideas. When analyzing sentence boundaries, pay attention to how ideas flow from one sentence to the next. Correct punctuation ensures clarity and prevents confusion for readers. Review the options carefully to identify which choice creates proper sentence structure.
Key Evidence:
• "what (singular reference)"
Why others are wrong: B ('Have appeared' is plural.), C ('Appear' is plural/base form; 'what' referring to singular takes 'appears.'), A ('Are appearing' is plural.).
🎯 Keep Practicing!
Master all sections for your best SAT score