[ Tenses ]
They ______ a significant breakthrough in their research last month.
A. was achieving
B. have achieved
C. achieved

Random Topics:
Phrases & ClausesPronounciation and GrammarCoordinating ConjunctionsPossessive Pronouns and Adjective PronounsPast TensesAsking and Giving Suggestion“Put” Phrasal VerbActive and Passive voiceCohesive DevicesWill vs be going toOther quiz:
Grammar › ViewA word that is used to describe an action, state, or occurrence is called______.
A. Noun
B. Verb
C. Pronoun
D. Adverb
Present Perfect & Past Simple Tense › View
A: Mary isn’t here. She ______ to Egypt. Â Â B: I ______ to Canada.
A. has gone / have never gone
B. has gone / have never been
C. went / have never gone
Grammar › ViewPrachi ………………..going out for a meeting.
A. is
B. are
Sentence Types › View
While all of his paintings are fascinating, Hieronymus Bosch’s triptychs, full of mayhem and madness, are the real highlight of his art.
A. Simple
B. Compound
C. Complex
D. Compound-Complex
