[ Definite vs Zero Article Abstract Nouns ]
___ research conducted in the last 5 years has been remarkable.
A. the
B. (-)

Random Topics:
Future Tense VerbPrepositionSo or SuchAdverbs of DegreeModals and ConditionalsMust or Mus notRelative ClauseSimple Past ContinuosPresent Tense (Negatives and Questions)Gerund Subject or ObjectOther quiz:
Grammar & Vocabulary › ViewThese cars are manufactured ………………….. Japan.
A. with
B. at
C. in
D. on
Grammar › View
Taking a taxi to work … than taking a bus to work.
A. is more expensive
B. more expensive
C. expensive
D. as expensive
Prepositions › ViewI live ……. Valencia
A. In
B. On
C. At
Tenses › View
Adverbs used with Simple Present Tense:
A. today, at present, at the moment, still, now etc.
B. always, usually, seldom, never, sometimes, often, frequently, generally
C. tomorrow, next day, in five minutes, later today
