Topics: Verb Tenses
We _____ the battery when the system short-circuited.
A. were testing
B. had tested
C. had been testing
D. tested
Select your answer:

Random Topics:
Coordinating ConjunctionsModal and Compound NounsModal Verbs and Contrastive ConjunctionsModal Verbs and VocabularyGrammar: was/wereApostrophes and Quotation MarksPast Continuous TensePresent Perfect and Present Perfect ContinuousPresent Perfect vs Past Simple TensePronunciation and VocabularyOther quiz:
Grammar › ViewThere ……… figs in the cupboard.
A. is any
B. are any
C. aren’t any
D. aren’t some
Modal Verb › View
How about………..?
A. visiting your friends?
B. visit your friends?
