[ Grammar ]
Its economy centers ________ the production of rice.
A. at
B. to
C. on
D. with
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Present and Past Simple PassiveFuture FormsPassive SentencePronoun & Present SimpleConditional Sentence Type 3-ed and -ing AdjectivesModals for Ability, Possibility and PermissionTOEFL GrammarFirst Conditional SentenceGrammar - must & have toOther quiz:
Past Tense › View-Why did you have a different address last year?
Because I ______ (live) with my aunt over the summer holidays.
A. lived
B. was living
C. had lived
D. had been living
Present Tenses › View
The next bus leaves at 8 p.m., but I still … a ticket!
A. bought
B. am buying
C. haven’t bought
Mixed General Quiz › ViewGalveston and Corpus Christi ___ Texas cities along the Gulf coast.
a. am
b. is
c. are
Subject Verb Agreement - Indefinite Pronouns › View
Somebody ……………. waiting for you downstairs.
A. are
B. is