While Edison ______ in his lab, he suddenly ______ a ...

[ Grammar ]

While Edison ______ in his lab, he suddenly ______ a new idea.

A. was working / had

B. worked / was having

C. worked / had

D. was working / was having

Select your answer:
A B C D E

Random Topics:

Modals of Obligation & Prohibition Modals and Active and Passive Voice Similes, Metaphors, Personification and Hyperbole Personal Pronouns Modals Deduction: cant /must Past Simple and Past Continuous Tenses Connectors Adjective & Adverbs Prepositions and Articles Present Simple Questions

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You should consider using public transportations, ___ you want to go.

A. wherever

B. because

C. so that

D. if