[ Subject-Verb Agreement ]
Sums and products of mathematical processes are expressed as:
A. Plural and require singular verbs.
B. Singular and require plural verbs.
C. Plural and require plural verbs.
D. Singular and require singular verbs.

Random Topics:
Present Simple vs Past SimplePresent Simple and Present ContinuousToeic VerbAdjective & AdverbConjunctionVerb Tenses (Progressive, Perfect)Zero & First ContidionalPresent Forms and Narrative TensesConditional and SubjunctiveLinking VerbOther quiz:
Grammar › View‘Can Billy come out and play?’
‘No, he ________ his mother do the chores right now.’
A. is always helping
B. helps
C. does help
D. is helping
Simile, Metaphor or Personification › View
The storm took the house in its teeth and shook it.
A. Simile
B. Metaphor
C. Personification
You ___________finish your homework before going out to play.
A. Must
B. Can
C. Should
Conjunction › View
We couldn’t find a taxi, ____ we walked home.
A. so
B. although
C. because
D. but