[ Grammar ]
I’m very keen _____ identifying insects and plants.
A. at
B. on
C. in
D. over

Random Topics:
Preposition FormConjunctions - Conjunctive AdverbsThe Present Progressive TensePreposition and AdjectivePrepositions of Place & TimeGrammar Double Object VerbsConjunctivesGrammar Past and Future TenseBASIC GRAMMAR - PRONOUNSGrammar - Sentence StructureOther quiz:
Present Simple › ViewThey ………… like playing tennis on Saturdays.
A. don’t
B. doesn’t
C. didn’t
D. won’t
Progessive Tenses › View
In the past, people invented steam engines.
A. past
B. present
C. future