[ Subject-Verb Agreement ]
Common knowledge to anyone who studies science, the earth ___ on its own axis once every twenty-four hours.
A. Revolve
B. Revolves

Random Topics:
Grammar-Present Continuous-Sentence MakingAdverb of Frequency and TensesSimple Present and Present ContinuosPast ModalsGerund, Participle, Infinitive, or AppositiveGrammar / PronounsComplex Sentences with Adverb ClausesParticiple Clauses & Cleft SentencesTenses and ArticleCompound AdjectivesOther quiz:
Grammar › ViewA: ……………… do you go out?
B: About twice a week.
A. How often
B. When
C. How much
Passive and Active Voice › View
A: Why are you so hurry?
B: I have arrive there on time because I . . . by my fiends there.
A. Waited
B. To be waited
C. Am waiting
D. Am waited
Vocabulary and grammar › ViewAfter working hard for hours, the farmers sat down and ___________ a short rest.
A. get
B. take
C. do
D. give
Grammar › View
Complete the sentence: They … siblings.
A. is
B. be
C. am
D. are
