[ 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
Random Topics:
Grammar - Sentence StructureLinking WordsDescriptionsComparative AdjectivesModals, Infinitives and GerundsGrammar - Future ActionWord Form & Verb TenseAuxiliary and Modal Verbslike/do not likeGerunds and TensesOther quiz:
Grammar and Vocabulary › ViewThis means to put a story in a certain time and place.
A. prequel
B. clip
C. shoot
D. set
Future Tense (will/be going to/p.continuous) › View
What are you doing __________? B: I haven’t decided yet. What are you up to?
A. at the moment
B. now
C. right now
D. this weekend