. How do the photographs provided by the author support the purpose?
A. by showing what ancient people might have seen in the sky
B. by explaining how comets are formed
C. by demonstrating why people should be scared of comets
D. by providing clues to the contents of a comet
Random Topics:
Past Perfect Tense and Past TenseModals and Present TensesSpeculation with Modal VerbsSynonymsGrammar & ReadingCommon & Proper NounsAdjectives and DegreesPresent and Past Simple TensePassive Voice - Present TensesPresent Simple and Present Continuous TenseOther quiz:
Grammar › ViewI hope to _________ in ARAMCO when I finish studying.
A. get a job
B. gets a job
C. got a job
Tenses › View
Why you ____________ (wear) your coat inside? It ____________ (not / be) cold here.
A. wear / isn’t
B. are you wearing / isn’t
C. have you worn / hasn’t been
D. will you wear / won’t be
Future Tense › ViewComplete the sentence: They _______ not attend the meeting.
A. did
B. wouldn’t
C. couldn’t
D. didn’t
Vocabulary › View
Through hard work and determination, he was able to _______ his goal of running a marathon.
A. influence
B. revise
C. achieve
D. perservere