[ 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 / Pronouns › ViewThe football player hurt ________ knee.
A. he
B. his
C. him
D. himself
Vocabulary › View
What does the word interfere mean
A. to disturb or interrupt
B. to answer or acknowledge
C. to question someone thoroughly
D. to become involved with a new team
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
