[ Perfect Tenses ]
They________________a computer.
A. hasn’t buy
B. hasn’t bought
C. haven’t buy
D. haven’t bought

Random Topics:
Toeic VerbSimple Present and Present Continuous Tenses�Put� Phrasal VerbDo not or Does notPassive Voice Present SimpleConditional 0Time PhrasesIndependent and Dependent ClausesMesopotamia VocabularyClauses of ReasonOther quiz:
Grammar and Vocabulary › ViewAdam, together with his brothers, __________ his grandparents every week.
A. visit
B. visits
C. visiting
D. have visited
Grammar › View
They ________ gone out. Their car is in the garage.
A. might have
B. must have
C. can’t have
Grammar › ViewIf the accused woman pleads guilty, it ___an open-and-shut case
A. would’ve been
B. may be
C. may have been
D. will have been
Tenses › View
During his stay in Rome, Elmer _______________ a lot of photographs.
A. pushed
B. put
C. took
D. caught