请问4道英语选择题

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