[ 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 › ViewCan you go to the shop? We need some _____ .
A. potatos
B. potatoes
C. potato
Present & Past Tenses › View
My daughter … a lot of photographs of the Borobudur when she went there on her last vacation.
A. had taken
B. has taken
C. would take
D. has been taking
E. took
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
