A recipient of both the Wolf Prize in Chemistry and the Robert A. Welch Award, chemist Ahmed Zewail expanded the limits of measurability when he devised a novel technique in optical spectroscopy that allows researchers chemical reactions occurring within molecules around a quadrillionth of a second, or one femtosecond.
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Verbal·Standard English Conventions·Form, Structure, and Sense
easyWhich choice completes the text so that it conforms to the conventions of Standard English?
A
to study
B
will study
C
who study
D
studying