[ 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 › ViewWhich is correct?
A. The boys were friends since they were eight.
B. The boys have been friends since they were eight.
Grammar › View
A: You’re very good at public speaking.
B: Thanks, but when I was young, I ……….. face a crowd.
A. mustn’t
B. couldn’t
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
