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 › ViewYou _________ spend so long on the computer.
A. should
B. shouldn’t
C. must
D. mustn’t
Grammar - Similes › View
The box is ______ a rock. Shivani hurt her back trying to lift it.
A. as hard as
B. as deep as
C. as heavy as
D. as round as
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.
