[ Past Tenses ]
The car exploded while I……. past it.
A. walked
B. had walked
C. was walking
D. had been walking

Random Topics:
Gerund after Prepositions and Certain VerbsFuture Tense VerbGrammar - Capitalization and Possessive NounsGrammar of Future PlansPrepositions of TimeGrammar - NounsDefinite & Indefinite Pronoun & ConditionalsConditional 0Adverbs or AdjectivesHabitual and Continuous TensesOther quiz:
Future Tenses › ViewI feel sleepy. I (drink) some coffee.
A. drink
B. is going to drink
C. am drinking
D. will drink
Grammar › View
Where _____ these players eating?
A. are
B. is