[ Subject-Verb Agreement ]
Turtles are unique; each (has, have) eight cervical vertebrea, compared with seven of most mammals.
A. Has
B. Have

Random Topics:
Verbs and PrepositionsPresent and Future TensesCoordinating and Subordinating ConjunctionsTransitive and Intransitive Verb-ing &-ed AdjectivesStative Verbs and TensesRelative - ConditionalPassive SentenceSimple Verb TensesGrammar - Verb FormsOther quiz:
Grammar › View‘_____ is the time, please?’
‘It’s two o’clock.’
A. Who
B. Where
C. When
D. What
Verb Tenses › View
Identify the tense of the underlined verb phrase in the sentence.
We have been to this restaurant already.
A. past perfect
B. present perfect
C. future perfect
D. past progressive
E. (simple) past
Grammar › ViewBenny liked to eat cookies, but he didn’t know ___, so he learned it himself by watching a lot of videos on YouTube.
A. how to make them
B. how to make
C. how could he make them
D. how he could make
Modals of Obligation and Permission › View
My dad _____ wear a uniform for his job as a security officer at the airport.
A. can
B. has to
C. have to
D. could
