But there are some researchers who claim that the area ___ by a meteorite.
A. couldn’t have been hit
B. couldn’t have been hitted
C. couldn’t have hit
D. couldn’t have been hut

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Adverbial ClausePast ParticipleConjunctions in Complex SentencesPast Simple and ContinuousVocabulary and Verb TensesSimple Present Tense with Adverb of FrequencyPronouns, Sentence Structure, and Figurative LanguageGrammar - Reflexive PronounsNoun Phrases and AdverbialsPrepositionOther quiz:
Article & Preposition › ViewWe had __________ dinner in a restaurant.
A. a
B. an
C. no article
D. the
Future Simple Tenses › View
. They are not going to visit their grandparents. What is the negative form?
A. They are not visiting their grandparents.
B. They are not going to their grandparents.
C. They will not visit their grandparents.
D. They are visiting their grandparents.
Grammar › ViewA What should I buy you for your birthday?
B I don’t mind. I’ll be happy with_____________you give me.
_
A. whichever
B. whatever
C. whenever
D. whoever
E. however
Comparision › View
John’s grades are _____than his sister.
A. higher
B. more high
C. more higher
D. the bigest
