This comes at a cost.comes

This comes at a cost.comes at a cost at a great cost At this time ,the owner comes ( )A.at B.to C.in D.from at a cost to the punisher是什么意思 at a minimal cost怎么翻译? Guests at this hotel can use the gym at no extra cost.为什么用no extra cost前用at? the cost of a long--distance call lasting 4 minutes and 20 seconds was $23.4.At this rate,what was the cost of a call lasting 6 minutes 30 seconds?your Answer is:$____ 英语翻译Book publishers try to get authors on TV talk show because this generate a lot of interest -and book sales - at no cost to the publishers.后面的-and book sales - at no cost to the publishers.是什么语法结构阿?还有at no cost 英语翻译（一）Bob comes out of station and at firsrt and at first he doesn’t know where to go.This is the first time he comes to this town..He comes to see his good friend,Peter.Peter is a worker.He works in a factory.But Bob doesn’t know i got up （at seven ）this morning对括号部分提问she is feeling (well)he comes to china (once a year) fidelity of angle is only achieved at a cost翻译并分析句子结构（at a cost） I wonder when Mr.Green__,but when he___,I___you know.a.well come:comes:letb.comeswill come:let c.comes:come:will let d.will come:comes:shall letWe__for Shanghai this weekenda.leave b.leaving .are leaving d.leftPick me up at eight o`clock.I__my bath 两道英语的单选题1.-Do you know when Dr.white___for dinner this evening?-No,but i think he _____when he is free.A.will come;comes B.will come;will come C.comes ;comes D.comes;will come （为什么,讲原因）2.-Look at the noisy kids!-Haven' 英语翻译Bob comes out of the station and at once he dosen't know where to go.This is the first time he comes to this town.He comes to see his good friend,Peter.Peter is a worker.He works in a factory.But Bob doesn't know where the factory is.He w sell at cost at the cost at the cost