[ Prepositions ]
You should concentrate __ your research work. That’s really important.
A. on
B. at
C. to
Select your answer:
Random Topics:
Verbs, Tenses, and VocabularyInfinitives and ING FormsPre-intermediatePresent PerfectPresent Simple Affirmative and NegativeProgressive TensesAll, Both, Neither, None, EitherComparative Adjectives and AdverbsTransition WordsOrdering AdjectivesOther quiz:
Past Tense › ViewThey (thank)____________ the woodcutter
A. came out
B. rushed
C. thanked
D. took
E. Offered
Passive Voice › View
The money … stolen by the thieves if you leave it there.
A. was
B. will be
C. has been
D. is