[ Grammar ]
I lost my keys when I ________ (walk) home.
A. walked
B. walk
C. is walking
D. was walking

Random Topics:
Reported Speech and Reported QuestionsVerb Types and TensesModal Verbs - ObligationGrammar - could / could notInversion + Passive VoicePrepositions of MovementPast and Future TensesPresent Perfect vs Past SimpleAdjectivesTime ClauseOther quiz:
Tenses › ViewI _______________ my glasses and broke them.
A. fell
B. dropped
C. wore
D. was wearing
Prepositions of Time › View
I’ll send you the money _____ the end of the month.
A. in
B. on
C. at
D. X