In the vessels of the vascular system of the giraffe ...

[ Grammar ]

In the vessels of the vascular system of the giraffe _____ of valves that ensures a needed supply of blood to the head.

A. are series

B. is seroius

C. is a series

D. a series is

Select your answer:
A B C D E

Random Topics:

Grammar - Sentence Structure Linking Words Descriptions Comparative Adjectives Modals, Infinitives and Gerunds Grammar - Future Action Word Form & Verb Tense Auxiliary and Modal Verbs like/do not like Gerunds and Tenses

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Which choice completes the text so that it conforms to the conventions of Standard English?

A. an adult salmon’s life cycle ends when it spawns and dies,

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A. prequel

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A. at the moment

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D. this weekend