[ Verb Tenses ]
The launch of the first liquid-fuelled rocket in 1926 ______ by flight historians______as significant as the Wright Brothers’ flight.
A. has considered – to be
B. was considered – to be
C. is considered – to be
D. has been considered – has been

Random Topics:
Verbs – Nouns – Adjectives - AdverbsModal Verbs and ConjuctionsPast Perfect Simple TenseVerb Tenses and Subject Verb AgreementPossessive Adjectives and Possessive PronounsTransitional Phrases and ConjunctionsKinds of NounsTypes of Sentence StructurePronouns/ Present TenseRelative - ConditionalOther quiz:
Grammar › ViewIt’s ………… bad luck that your team didn’t win the match.
A. such
B. so
C. such a
Modals › View
He ________ cook tonight because he’s going to a restaurant.
A. doesn’t have to
B. don’t have to
C. shouldn’t
D. have to
Grammar and Vocabulary › ViewZara is much ________ than her sister.
A. friendlier
B. more friendly
C. friendlyer
Prepositions and Adverbs › View
She plans to read a book ________ her classes end.
A. for
B. before
C. after
D. at
