[ Grammar ]
Alexander Fleming ________ penicillin.
A. was discovering
B. discovered
C. discovers

Random Topics:
BASIC GRAMMAR - PRONOUNSConditional Sentence Type 2Because / soFuture Perfect TenseSimple Future - PassiveVerb AgreementDefinite ArticlesThe Future Simple TensePrepositions of Location, Movement and TimeGrammar - Imperatives and LetOther quiz:
Prepositions › ViewThe passengers got ___ the bus at the final stop.
A. in
B. on
C. at
D. out
Personal Pronouns › View
My mother always looks after me. I love ___ very much.
A. him
B. her
C. us
D. me