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:
Conjunctions › ViewRevise the following sentences, choosing the correct conjunctive adverb. Add the correct punctuation.
The U.S. Green Building Council promotes environmentally friendly building practices (therefore moreover) the organization promotes architecture that incorporates sustainability in houses and offices.
A. , therefore,
B. ; therefore,
C. , moreover,
D. ; moreover,
First Conditional › View
I…. you my laptop if you …… to be careful with it.
A. will give, promise
B. give, will promises
C. gives, will promise
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