SAT语法题几道

SAT语法题几道
1.（Writing through Australia were the center of the world,Banjo Paterson became the country's best loved poet.)
A.原句
E.Becoming the best loved Australian poet,Banjo Paterson wrote as though it were the center of the world.
我选E
2.Except in mathmatics,absolute proof is more often an ideal to be sought than a goal to be reached,(a fact that courts recognize by setting) varying standards of proof for different kinds of cases.
A.原句
B.which the courts recognize and set
我选B 选A的话整句话表示什么意思呢?
3.He was convinced that (if property taxes would have rose) any higher,he would have had to move to a different area.
A.原句
B.if property taxes would rise
C.if property taxes had risen
D.had property taxed rose
E.were property taxes to rise
为什么?