[ Prepositions ]
He is expert ___ science
A. at
B. on
C. in
D. for
Select your answer:

Random Topics:
First ConditionalTransitive and Intransitive VerbConjunctive AdverbsGrammar AssessmentIrregular Plural Nounsused to vs be used to vs get used toModals of DeductionDemonstrative Pronouns and Verb TensesDirect and Indirect QuestionTenses and ConclusionsOther quiz:
Tenses › View. Kate … some biscuits now.
A. makes
B. is making
C. made
Modal Verbs of Deduction and Speculation › View
I can’t find my glasses. I definitely had them on the bus.
A. I can’t have left them at home.
B. I can’t leave them at home.
