[ Subject Verb Agreement ]
A number of special conditions (is / are) necessary for the formation of a geyser.
A. is
B. are
Select your answer:

Random Topics:
Future Time and TensesRelative PronounImperative SentencesModals of Obligation and NecessityAsking & Giving OpinionSentencesModals and PhrasesComparisionsContinuous Tensesso vs suchOther quiz:
Let & Be allowed to › ViewI’m not _____________ stay out late.
A. let to
B. allowed to
C. allowed too
D. lets to
Grammar › View
I love ice-cream, __________ chocolate.
A. special
B. especially
C. more
