几道SAT语法题 真的特别急!1 Giraffes have a distinctive way of （walking

几道SAT语法题 真的特别急!
1 Giraffes have a distinctive way of （walking,they move both right legs ）forward and then both left legs
括号里的改成
A walking,which move both right legs
B walking； they move both right legs
为什么A 不对 which不是可以修饰前面的主语吗 因为有逗号啊 为什么还不对啊
2 (No one was more pleased than I )when I heard that she get the job
为什么这里是I ,那为什么是no one was taller than me
3After the Soviet Union blockaded all access to West Berlin in June 1948,three nations sent( airplanes to the city,which were loaded with much-needed food and supplies.)
为什么是airplanes loaded with much-needed food and supplies to the city
不是说从句要大于分词吗
4The governer favored the new laws because( it would )allow the the state to save more money
为什么括号里面是错的啊 the new laws不就是表示单数吗