[ Subject-Verb Agreement ]
_______ and _______ of mathematical processes are expressed as singular.
A. Sums / products
B. Questions / answers
C. Equations / answers
D. Equations / functions

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Grammar › ViewWhat is ” a part of sentence with subject and verb”?
A. a verb
B. a gerund
C. a clause
D. a phrase
Future Tenses › View
I _____ this book for tonight’s classes.
A. am going to use
B. am using