有些答案不太确定 It was the first time that Nancy and Harry went for their summer holiday without any of their children.Their son was away at college,and their two daughters were married.They felt a little lonely(孤独) without the children.

有些答案不太确定 It was the first time that Nancy and Harry went for their summer holiday without any of their children.Their son was away at college,and their two daughters were married.They felt a little lonely(孤独) without the children. it was well worth the effort这个是什么 意思 小弟不太明白 自己不太确定,并说明理由.1.they have been in the library since___ A a long time ago B it had been open C eight o'clock D two hours2.this is the first time I ___here A was B have been Ccame D am coming3.Miss Green isn't in the office.she ___ 高数中关于可导的充要条件的问题答案中有些不太明白,函数在x=0处的导数为分子上为什么不减去f（0）,又不能确定函数过原点 It was the third time that he____ us about his story.Atold Bhad told Chas told请确定答案者回答 that was then,and this is 原句是China weathered the storm of the 1997 Asian financial crisis,but that was then,and this is now.是此一时彼一时的意思么?我不太确定.求亲们指教. It was an awful film,It was the worst film () i have ever seen 在括号中填入关系代词,答案是that为什么不可以填which It's___last week that the haze in Beijing caused many problemA,reports B.reported C is reported D was reported不太清楚…… It was in the factory_____my father worked.答案是whe... 英语翻译Does the theory the god guides evolution assume the very kind of organized complexity it tries to explain?是关于哲学类的问题,自己理解的时候感觉有点歧义,不太确定,所以请达人来给个正解 P9 9.The book was so interesting that he had read it for three times _____ he relized it.A.after B.before 答案为什么不选A? 英语翻译我不太明白的是,这句中的was it u是反意疑问句还是? by the time的用法.有2个问题.by the time 可以用在表示将来的句子中吗?我看有些回答说的都是表示过去.所以我有点不太确定.然后,by the time 后面必须接从句吗?例如,by the time,i will seek you.如果句子 初中改错题一行字有一个错误,小弟确实改不了,有些也不能确定改对没有?谢谢各位大侠I bought a clock in a shop on last Sunday afternoonThis morning,however,I found that it was not workedSo I went back the shop with it.Th it's 9 o'clock.the children are going _____class 答案是into,我不太理解,为什么要用into我觉得to ,in 也可以 how do you like the concert?--i really enjoy it .i didn't expect it was __wonderful.--how do you like the concert?--i really enjoy it .i didn't expect it was __wonderful.A more B most C very D as不太明白什么意思和什么语法 水蒸气顶起壶盖,是内能转化为机械能.有些概念不太确定,请问：是哪一个的内能,转化为哪一个的机械能呢? ---What color is ___ orange?---It's ___ orange.A.AN,AN B.AN,THE C.AN / D./,AN我们正在复习,可是就是不太确定,希望你们告诉我.