甲每5天进城一次，乙每15天进城一次，丙每4天进城一次

关于do...but do之类的语法是怎么样的?如i have no choice but to do wait silently ,I miss you very much food and beverage outlets是什么意思 did you wait for him very long? 酒店管理中 Food and Beverage Service 的课业Assessment task instruction:completion of observation checklist.This is practical exercise and evidence should be recorded on an observation checklist.Candidates must prepare an area for,and provide, 有中国"草原钢城"之称的是? Package 3 of the RFP at the Los Angeles International Airport； food and beverage concessions 是啥 With out good English,we can't e your ideas well at shch meetings,wecan't i China to the people from different countries 把答案填到空格中 老妇人为什么会想起乔依?（餐馆里面十分破旧,光线昏暗.店主是一位年轻的女人,她热情地送上一条雪白的毛巾,让老妇人擦干头发上的雪水.老妇人感到心里很舒服.她发现这位女店主的脸上虽 为什么老妇人突然想起了乔依 为什么老妇人突然想起了乔依?《爱之链》当中的. 老妇人想起了乔依.改为双重否定句:我家临近有几棵大榕树.改为反问句:弟弟告诉小丽:"我明天老妇人想起了乔依.改为双重否定句:我家临近有几棵大榕树.改为反问句:弟弟告诉小丽:"我明天要 历史上谁因浮躁而失败,谁因不浮躁而成功? 英语翻译用处是什么? destination management是什么课程? there are two (b__)over the river. 判断正确There are two bridge over the river 还有句子的it指的是什么东西my home is near a river ,there are some mountains behind my house .There is a road in front of my house ,you can see two bridges over it,Welcome to my home . intersection和corner的区别这两个单词是不是表示一样的意思？可以替换。 like和for example的使用区别. crossroad crossing区别 The main purpose of the new arrangement is to encourage people to___money for their old age.A.save B.keep C.maintain D.preserve答案应该选A,为什么?请说明原因, 英语翻译in china,by a bike is the most popular means of transportation ,其中means of transportation一定要是复数吗?为什么 英语翻译是问句 love runs out难唱吗 love runs out空间链接 One Republic的Love runs out 的mp3如果有歌词就更好啦～ 谢谢啦! 为什么我打表时会出现双字双格就是用沃特制作表格后印刷出双字比较模糊那种 格字用拼音怎么打 turnig和crossing的区别be busy 后面什么时候用of doing什么时候用to do The soldier is in danger of being hunt 这里in danger of后面为什么加being ,为什么不直接 hunt 加ingI appreciate being invited to the party .这里的appreciate 后面为什么又要加being 按要求写词句 形容玛丽奉献的 帮我区分一下cross、crossing、across的区别.