[ Grammar ]
Air …………………………………. (consist) mainly of nitrogen and oxygen.
A. consists
B. consist
C. is consisiting
D. are consisting

Random Topics:
Grammar - Verb FormsGerund NounAuxiliary VerbsGrammar - Capitalization and Possessive NounsActive & PassiveLanguage Features of an Opinion ArticleProverbsAuxiliary Verbs (be, do, have)Past and Present TensesAdjective ClausesOther quiz:
Quantifiers › ViewI want to buy a new sport car, but I only have ________money.
A. much
B. a little
C. a few
Grammar › View
Find the simile in the sentence:
The bodybuilder at the gym is as strong as an ox.
A. at the gym
B. is as strong as an ox
C. as an ox
D. is as strong
Grammar › ViewI ____ I’d visited you last summer when I had the chance.
A. wish
B. hope
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It is the weekend. Julia and her family ___ at the park.
A. is
B. are
C. was
D. were
