had she not come) to our help when we were in trouble,we couldn't have finished our task on time.括号里面是什么结构啊.if she didn'tcome怎么错了

she had known that Michael could not come ,Doris would never have come to the party.改错 如下句子请帮忙译一下,Lena came to America in a bad hour.Michael's father had lost job and his mother was ill.But Lena was not worried.She had had a hard time in Hungary and was glad she had come to a new country.She did not know what a hard How Come How Long babyface的歌.How Come How Long There was a girl I used to know She was oh so beautiful But she’s not here anymore She had a college degree Smart as anyone could be She had so much to live for But she fell in love with the wrong Good evening,I ___ to see Miss Mary.---Oh,good eveing.Sorry,but she is not in.A.have come B.come C.came D.had come我自己也选的B， 25.---Good evening.I _______ to see Miss Mary.---Oh,good evening.I’m sorry,but she is not in.A.have come B.come C.came D.had come ---Good evening.I _______ to see Miss Mary.---Oh,good evening.I’m sorry,but she is not in.A.have come B.come C.came D.had come good evening,i __ to see Miss Jessicoh~good evening ,i am sorry ,but she is not in a:came b:come c:have come d:had come 为什么, ---Good evening.I _______ to see Miss Mary.---Oh,good evening.I’m sorry,but she is not in.---Good evening.I _______ to see Miss Mary.---Oh,good evening.I’m sorry,but she is not in.A.have come B.come C.came D.had come给认真的回答 - -说选B Good Morning.I------- To See Miss Jessica.Oh!Good morning.I’m Sorry ,But She Is Not In A Came B Was Coming C Have Come D Had Come Lucy____(want)____(come) to my house,but she did not come ___i might have ended up dead.A.were he not to come to the rescure B.should he not come to the---rescure.C.had he not come to the rescure D.if he did not come to the rescure she did not come to school yesterday,did she?------though she was not feeling very well.横线中填? Her heart chilled when she found that nobody had come to the station to meet her. She didn’t come to the party last Sunday.＿＿＿,she must have made the party more exciting.如题 A.If she came B.Would she come C.Had she come D.Did she come _____ so busy,she should come to help us.A.Were she not B.Was she C.If she is not D.Not were she Did __________ home for several years made the parents angry? A. she not come B. she not to come C. not her coming D. her not coming she did not come to school because she was ill改成同义句she did not come to school because ——her— 求翻译1句英文属于英文同人文的内容 只知道大体情况是快要缺氧挂了..但是真心看不懂= =She had immediately come to her rescue, not caring if she died from oxygen starvation