[ Vocabulary and Grammar ]
. What is the main purpose of “Long-Tailed Lights”?
A. to explain what comets are
B. to tell where comets can be seen
C. to entertain the reader with myths about comets
D. to persuade the reader that comets are important

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GRAMMAR - Could / Could notQuestion TagWill & Be going toAdverb ClausePast SimplePronouns, Verb, ConjunctionRelative Clauses PronounsPassive SentenceTime ClauseSubject Verb Agreement and Verb TensesOther quiz:
IELTS Grammar › ViewHealthcare needs _________by the government
A. invest
B. invested
C. investing
D. be invest
Grammar › View
He speaks English _____ than his brother.
A. fluent
B. fluently
C. more fluently
D. most fluently
Tenses › ViewSingway ____ when someone took his ruler.
A. roar
B. roared
C. roarred
Modal Verbs › View
You ______ take any of the confidential files home. It’s against company rules.
A. don’t have to
B. haven’t got to
C. mustn’t
