[ Prepositions ]
A galaxy is a system ___ stars.
a. of
b. off
c. with

Random Topics:
Grammar and PrepositionPassive Voice - Present TensesInfinitives or GerundsAdverbial PhrasesLet & Be allowed toFirst Conditional, Future Time ClausesModals VerbsModals and Adjectives (ed-ing)Adjectives and ArticlesGrammar - Collective NounsOther quiz:
Modal Verbs › Viewwe___________________be at the ticket office by 9 o’clock or there won’t be any left to buy.
A. can
B. must
C. have
Simple Present Tense › View
A : … your mother … a newspaper everyday?
B : … She prefers to watch the news.
A. Does. reads. No, she doesn’t
B. Does, read. No, she doesn’t
C. Do, read. Yes, she does
D. Does, reads. Yes, she does