He hasn't bought a car for 3 years,为什么用bought这里注明：用bought是正确的.为什么是正确的?

he __ for three hours.A.has bought it B.has received it C.has got here D.hasn't come here He hasn't bought a car for 3 years,为什么用bought这里注明：用bought是正确的.为什么是正确的? Has he had his dinner yet?A.Yes,he hasn't B.No,he hasn't C.Yes,he had D.NO,he didn't Mother's Day is coming.But he hasn't bought a present for his mother yet.这个现在完成时的句子中为什么能用非持续动词bought? He has few friends here,_____?A.has he B.hasn't he C.does he D.doesn't he It's the second time that Jack has been late,--?A.hasn't he B.isn't he C.isn't it D.hasn't it为什么呢? 选择题“Peter has to work till nine o'clock,_____?''A.hasn't he B.doesn't Peter C.hasn't Peter D.doesn't he He---his house yet,he is very sad A doesn't own B hasn't own C hasn't owned D didn't own the man's come to see his daughter,____?A isn't he B isn't the man C hasn't he D hasn't the man He's already back home,___he?A hasn't B has C is D isn't --why is he so upset --he___ his pen yesterday.it ___ yet.A,was lost;hasn't found B.was lost;hasn't been found C.lost;hasn't find D.lost;hasn't been found MrHu never plays football,___?理由 a.does he b.donesn’t c.has he d.hasn’t heMrHu never plays football,___?理由a.does he b.donesn’t c.has he d.hasn’t he He must have learn English for three years,___?A.hasn't he B.haven't he C.mustn't he D.didn't he要理由,谢谢 He's read this book before ,< A hasn't he B doesn't he C isn't he D wasn't he老师复印的卷 he's fed the dog and the cat ,__?a.doesn't he b.isn't he c.wasn't he d.hasn't he Mr.Wang has never been to England,__?A.hasn’t he B.has Mr.Wang C.hasn’t Mr.Wang D.has he Li ming has never seen snow before ,____?A hasn't Li ming B has Li ming C hasn't he D has he He must be in the classroom ,___he?A mustn't B needn't C hasn't D isn't