[ 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:
Past Simple Tenses › ViewHow do you ask if someone visited a place in the past?
A. Did you visit [place]?
B. Were you at [place]?
C. Did you go to [place]?
D. Have you been to [place]?
Conjunctions › View
My family went to Africa ______ we wanted to study the wild animals.
A. so
B. because
C. therefore
D. or
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
