[ 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 › ViewWhich is the correct spelling of CASUAL as an adverb?
A. Casualy
B. Casually
C. Casuily
D. Casuaily
For vs Since › View
Peter has read eleven books _______ last weekend.
A. since
B. for
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
