[ 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:
Possessive Adjectives & Possessive Pronouns › ViewThat hammer belongs to my neighbor. It’s ____ hammer
A. your
B. our
C. their
D. his
Sentence Structure › View
Identify the sentence structure of the following sentence: “Our tour guide showed us the house, and she demonstrated cooking on a cast iron stove.”
A. Simple
B. Compound
C. Complex
D. Compound-Complex
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
