Have the thieves stolen the most valuable painting in the national museum?
A. Have the most valuable painting in the national museum been stolen by the thieves ?
B. Has the most valuable painting in the national museum been stolen by the thieves ?
C. Had the most valuable painting in the national museum been stolen by the thieves?
D. Has the most valuable painting in the national museum stolen by the thieves ?

Random Topics:
Past Simple TenseGrammar - Present Perfect with already, just, yetGrammar: AgreementPrepositions of Place and TimeGrammar ClausesComparatives - SuperlativeArticles - rulesPast Perfect Tense and Past TenseOpinion / AgreementComplex SentencesOther quiz:
Modals › ViewYou ____ hurry up or else we will be late
A. must
B. had better
C. could
D. might
Passive Voice › View
Gold __________ in California in the 19th century.
A. was discovered
B. was discover
C. has been discovered
D. they discovered
Simple Present Tense › ViewI _____ (be) a student.
A. Are
B. Is
C. Am
Tenses › View
She ____ interest in new investments lately.
A. has shown
B. will show
C. is showing
D. show
