They have sent the books to the wrong address.
A. The books had been sent to the wrong address.
B. The books have been sent to the wrong address.
C. The books has been sent to the wrong address.
D. The books is being sent to the wrong address.

Random Topics:
Simple Past or Past ContinuousAdjective and AdverbPresent & Past TensesModals AuxiliaryVerb FormVerb Tenses and Past ParticiplesWh-QuestionPresent TensesPresent Perfect ContinuousContinuous TensesOther quiz:
Grammar › ViewShe has _____ experience working in broadcast journalism.
A. much
B. a number of
C. some
Will or Going to › View
Are you watching the game? Its 10-5, ______ the match!
A. they’ll win
B. they’re going to win
Grammar › Viewon, in, of, to, above, under, around
A. adjectives
B. helping verbs
C. prepositions
D. infinitives
Grammar › View
Which of the following is a complete sentence?
A. A group of lions may include over ten animals.
B. The diets of both male and female lions.
C. Sleep many more hours per day than humans do.
D. Of a lion in a zoo is twenty to twenty-five years.
