[ Definite vs Zero Article Abstract Nouns ]
___ research is difficult but rewarding.
A. the
B. (-)

Random Topics:
Present ContinousFirst Conditional & Future TensesAdverb or AdjectiveDescribing WordsAdverbs and PhrasesVerb to beIELTS VocabularyThe First Conditional SentencePersonificationWill & Be going toOther quiz:
Grammar › ViewWhose boots are these? _____.
A. They’re Chiara’s
B. They’re from Chiara
C. They’re Chiaras
Vocabulary › View
What is the meaning of the word “lucid”?
A. Confusing
B. Clear and easy to understand
C. Dark
D. Ambiguous
Prepositions › ViewI just bought a house … the coast.
A. in
B. on
C. at
Question Tag › View
Sam __ a good job on the talent show, did he?
A. isn’t doing
B. didn’t do
C. doesn’t do
D. hasn’t done
