SAT OwlQuestion bank / Form, Structure, and Sense
In the early 1960s, physicist Richard Feynman taught an introductory course to undergraduates at the California Institute of Technology. The collection of lectures that he delivered in that course ______ still widely read by physics students today.
Which choice completes the text so that it conforms to the conventions of Standard English?
are
have been
is
were
Show answer and explanation
Answer: C
The subject is "The collection," which is singular; "of lectures that he delivered in that course" only describes it. A singular subject takes "is." The present tense fits "still ... today."
Choice A agrees with "lectures," but that word is part of a modifying phrase, and the subject is the singular "collection."
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