[ Subject-Verb Agreement ]
The cost of goods (vary/varies) greatly in the different state
A. Vary
B. Varies

Random Topics:
Can vs CouldPersonal pronouns + possessive adjectives + Introgative pronounsLinking Words and ConjunctionIndefinite ArticleQuantifiers and ArticlesQuantifiersGerund vs InfinitiveGrammar : Must (Necessity)ComparisionsPhrasal Verb With TakeOther quiz:
Vocabulary › ViewWhat is the study of religion and religious beliefs called?
A. philosophy
B. psychology
C. theology
D. sociology
Grammar › View
She ______ to school every week.
A. go
B. going
C. is going
D. goes