[ Tenses ]
We …… the code when the client called.
A. have debugged
B. debugged
C. were debugging

Random Topics:
Present Perfect and Past SimpleIdiom and TensesAdverbs, Infinitives, Definite ArticleShould, Should not haveAntonymsModals Of Speculationso vs suchVerb FormsVocabulary and GrammarGerund, Infinitive, Bare VerbOther quiz:
Present Perfect Tense › ViewThey are singing and dancing because their uncle……
A. has arrived
B. is arriving
C. arrives
D. arrived
Grammar › View
The scientific history of radium ______ beautiful.
A. was
B. is
C. had been
D. is being
Grammar › ViewAre you Tom Brown? — Yes, ____
A. you are
B. we are
C. I am
Tenses › View
Emily and Rosy ___ a picnic in the park now.
A. are having
B. is having
C. have
