I have bought three ballpoint pens,none of _____writes smoothly.

I have bought three ballpoint pens,none of _____writes smoothly. 下面选择题是选have had 还是have bought?I ( ) it since three years ago.A.had B.bought C.have had D.have bought I bought the bike three years before和I have seen the film ago为什么错 I () these books for three years.A,bought B,have bought C,have had (请简要说明为什么选此答案） I have three( ).(photo) I have bought the new mp3 for three days.这句话有什么语病哪?（单句改错） She have bought the computer since three years ago Have you bought it?--When( )you ( )it?如题：是用一般过去时还是现在完成时? 还有I have bought it.--When ( )you ( )it? He (when还have gone)to see his father three days ago. 为什么这样填啊? I have three friends.对three提问. i have three cousins 对three提问 i bought a book three days ago.改为一般疑问句. I bought the book three days ago的同意句 I have bought p___ of eggs. i have three blue pen ____ you bought any books?Yes,I ____ some two week ago.A.Have,have bought B.Did,bought C.Have,bought D.Did,have bought选择题 I _____ a dictionary.I ____ it in the bookshop.A.have bought;bought B.bought;bought What a pity I have no money.Otherwise I (bought;will bought;would have boug What a pity !I have no money.Otherwise I (bought;will bought;would have bought;would buy)选哪个?