[ Grammar ]
Its economy centers ________ the production of rice.
A. at
B. to
C. on
D. with
Select your answer:

Random Topics:
Grammar - must & have toTime ExpressionsConjunctions - Conjunctive AdverbsWill and Will notPersonal PronounsTemporal Conjunctions and ConnectivesPresent PerfectNouns and VocabularyPhrasal Verb and ModalPresent ContinousOther quiz:
Tenses › ViewCarly Logan plans — , so Alan Zill has volunteered to be the stamp club’s next treasurer.
A. resigning
B. to resign
C. resigns
D. to have resigned
Verb Types and Tenses › View
Which sentence demonstrates the correct use of the subjunctive mood?
A. I wish I was taller
B. I wish I were taller
C. I wish I am taller
D. I wish I be taller
