①He has fallen ill,which will delay his study greatly.
has got to是不得不的意思；而“推迟”是因为生病,所以应该用将来.
②If i could choose a city without bikes or a city without cars,i would choose the latter unhesitatingly.(选择两个城市)
③it is obvious that the bookstore is operated/run by her assistant.（开书店不用trade)
④all the things show some errors arising in his plan（谓语：show,arising定语）
⑤You all should catch every occasion to speak English.(all:you的同位语,English前不用the)
⑥Because I haven't read the book,i can't show my idea.(due to 属于介词词组的）
⑦that countries are at war again
⑧this is the room,where he has been working for nearly ten years.
⑨if I could choose a city with no bikes or a city with no cars,I would choose the latter unhesitatingly
如果用not having,或having not,这句话改不了的.因为not having（或having not）都不作定语.
