小妹大号密码被我哥哥先给改了 过几天给我 所以先用小号开个号问问题

小妹大号密码被我哥哥先给改了 过几天给我 所以先用小号开个号问问题
1、from its modest beginnings as a series of brief vignettes and its establishment as the longest-running,prime-time comedy series on the television,the simpsons has transformed the way that both audiences and television programmers （view） the animated sitcoms.
括号部分为什么是一般进行时?不是过去的事情么?
2、programs often involve a semester spent with a host family (during which) a students can experience the local way of life firstand.
我知道那个during which是修饰semester 但是用where在括号部分不能修饰a host family
3、it is terrifying to observe how [indifferent] people have remained to the irreversible contamination of our environment.
为什么括号部分不用indifferent?我听人说indifferent是修饰people的 但是我觉得应该是用indifferent吧
4、the team of flight mechanics,【four of whom】 are certified electricians,work on all of the interior mechanical malfunctious reported by the flight crews.
four who 在括号处为什么不行?
5、though i am acquainted with Mr.Bartholomew and have long known of his interest in the painting,that he has gone to such lengths to obtain 【it】 astonishes me.
括号处it为什么没有指代不明呢?不是这里it 指interest或者painting都可以么?
PS：还有问题1里的has transformed 为啥对呢
那个Nosaustin
不好意思 第五题指代没有不明确 答案说没有不明确
而且你无视了我的问题= = 还有那个during which which指代的是semester

1,view用的是一般现在时,正确
本文就是现在的时态,HAS DONE也是现在的时态,怎么能是过去时态呢,SAT语法有条原则,主从句时态保持一致
2,介词+which结构
which前是during,告诉我们which应该是一段时间,正好是semester,所以which指代A HOST FAMILY
3,形容词及副词
sat中规定,到底用形容词还是副词我们不看位置,看修饰对象,indifferent应该是跟remain
4,whom宾格,跟在of后做宾语
5,你都说了,interest或者painting自然指代不明确了,指代对象不唯一