请问4道英语选择题1 ___ their difference,the couple were developing a

请问4道英语选择题
1 ___ their difference,the couple were developing an obvious and genuine affection for each other.
A but for B above all C for all D Except
Key:C
2 ___ the danger from enemy action,people had to deal with a severe shortage of food,clothing,fuel,and almost everthing.
A As long as B As far as C As well as D as soon as
Key:As well as
3 the lady tried on all the dresses in the shop but found___that satisfied her.
A nothing B none
Key:none
4 He___his father's place as president of the company at the age of 25.And he ___ to be more successful than his father.
A had taken; turned out
B took; has turned out
key:B
Thanks
第3题我主要想问 nothing 与 none 的区别
第4题我主要想问 时态的区别
Thanks

第1题：
for all 为习语,表示让步,意为“尽管”、“虽然”,其后可接名词、代词,也可接句子.如：
For all his wealth and fame, he’s a very lonely man. 他虽然又有钱又有名,但很孤独.
He has great power and wealth, but is still unhappy for all that. 他有钱有势,可尽管如此却并不快乐.
They are good people, for all that their ways are not the same as ours. 他们是好人,尽管他们的生活习惯和我们的不同.
For all his talk about sports cars and swimming-pools he’s just an ordinary bank-clerk. 别看他大谈昂贵的汽车跑车和私人游泳池,其实他只不过是个银行的普通职员.
For all you say, I think she’s the best teacher we’ve got. 不管你怎么说,我仍然认为她是我们最好的老师.
第2题：
as well as 可视为准并列连词,表示“和”“而且”,A as well as B相当于not only B but also A（注意A、B位置的不同）.此句意为：人们不仅要解决食物、衣物、燃料——几乎所有一切的严重缺乏问题,而且还受到敌方行动的威胁.
第3题：
关于nothing与none的区别
(1) none 既可指人也可指物,其后通常接 of 短语；用作主语时,若指不可数名词,谓语只能用单数,若指可数名词,则谓语可用单数(较正式)也可用复数(用于非正式文体,但更符合惯用法).如：
None of the food was left. 一点食物都没留下.
None of the books is [are] interesting. 没有一本书有趣.
(2) nothing 只用于指物,不用于指人；其后不能接 of 短语；用作主语时,谓语动词只能用单数.如：
Since so, I have nothing to say. 既然如此,我无话可说.
He listened but heard nothing. 他注意听,但什么也没听见.
Nothing has been done. 什么也还没有做.
(3) none 往往暗示一种数量,即指数量上“一个也没有”,而nothing则往往表示一种全面否定,即指“什么也没有”,所以在回答 how many 或 how much 的提问时,通常用 none,而在回答 what 的提问时,通常用 nothing.体会：
A：How many English books have you read? 你读过多少本英文书?
B：None. 一本也没读.
A：How much money did you give her? 你给了她多少钱?
B：None. 一分也没给.
A：What did you give her? 你给了她些什么?
B：Nothing. 什么也没给.
(4) none通常暗示有一定的范围(这种范围通常就表现在其后的 of 短语上),而 nothing 则不暗示这种范围.体会下面的两组对话：
A：Do you spend any of your money on books? 你在图书方面花过钱吗?
B：None. 一分也没有.
A：Does he say anything important? 他说了什么重要的事吗?
B：No, nothing. 没有,什么重要的事也没说.
第4题：
第1空用一般过去时,因为谈论的是过去的情况（注意句中的过去时间状语 at the age of 25）；第二空用现在完成时,强调现在的结果,故用现在完成时.