[ Present Perfect Tense ]
They have paid the bill.
The interrogative form of the sentence above is ….
A. Have they paid the bill?
B. Has they paid the bill?
C. Have paid they the bill?
D. Has paid they the bill?

Random Topics:
Relative Clauses and Past PerfectPresent ContinousPast Simple and Past ProgressiveModal Verb in Passive VoiceDegrees of ComparisonConjunctionRelative Pronouns and AdverbsTypes of PrepositionRelative & Interrogative PronounsGrammar for TOEFLOther quiz:
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