These statistics ____________________ ( not -revise ) since 1997. These statistics were not revised since 1997.
A. These statistics are not revised since 1997.
B. These statistics were not revised since 1997.
C. These statistics have not been revised since 1997.

Random Topics:
Tenses and Word FormationPresent Tenses and ConnectorsDirect Object and Indirect ObjectConjunctions and PrepositionsVerb Tense, Pronouns and AntecedentsIF CLAUSEDescriptionsCoordinating & Subordinating ConjunctionsShould, Should not haveSentence StructureOther quiz:
Grammar › View. Choose the sentence in future perfect tense:
A. They are playing basketball.
B. They will play basketball.
C. They will have played basketball by noon.
D. They have played basketball.
Prepositions of Place › View
The blanket is ______ the ball.
A. on
B. in
C. under
D. beside
Grammar › ViewAfter seeing the success of her former colleagues, she wishes she _______ more risks in her career.
A. had taken
B. took
C. takes
D. was taking
Adverbial Clause of Cause and Effect › View
Tomorrow is a holiday __________ we don’t have to go to school.
A. Because
B. In order that
C. Since
D. So that
