Several missing files, which _____ yesterday, contained sensitive information about security protocols for company databases.
(A) found
(B) had found
(C) has been finding
(D) were found

Random Topics:
Tenses and Verb FormsNoun, Pronoun, Adjective, VerbGrammar of Conjunctions and PrepotitionsRegular Plural NounsOrder of AdjectivesPast Tense and Perfect TenseUse of Prepositions or ConjunctionsComparatives or SuperlativesSentences vs Run-OnsPresent Perfect ContinuousOther quiz:
Grammar › ViewThe children can decorate the Christmas tree by _______________.
A. ourselves
B. himself
C. herself
D. themselves
Perfect Tenses › View
My mother _____________ a message on the fridge, but I didn’t see it.
A. has leave
B. have left
C. had leave
D. had left
Grammar › ViewI am sure David ________________ taken you books by mistake.
A. shouldn’t have
B. must have
C. couldn’t have
D. might have
Reported Speech › View
” We are going to a concert tonight.”
A. She told me they are going to a concert that night.
B. She told me they were going to a concert that night.
C. She told me we would go to a concert that night.
D. She said they had going to a concert that night.
