一道SAT语法题

Question

Jesse passes the California bar examination last year,(and he has been practicing law in California ever since)
B.since that time he has practiced law there
C.where ever since he practices law
D.he has been practicing law in California since then
E.and since then is practicing law there
请帮忙分析下每个选项 感谢！

Answer 1

去年通过考试，从此一直到现在，他都在练习法律，意为过去的动作到现在，还有可能要继续下去，要用现在完成进行时。其他选项的时态我就不说了
B.since that time he has practiced law there前面要加个and.因为since that time 是时间状语，这样前后两句没有连词，是错句。
C.where ever since he practices law出题词人想出个定语从句来干扰，可这题的先行词是last year，不是表地点的。
D.he has been practicing law in California since then前也要加AND。
E.and since then is practicing law there时态不对。

Answer 2

B.since that time he has practiced law there应该用the time
C.where ever since he practices law， where ever 错了，应该是where
D.he has been practicing law in California since then是对的
e and since then is practicing law thereg应该变成he is
有问题再问我

Answer 3

首先我不懂你的意思，看到楼上的改错，我也试着改改
b since that time改为since when， 构成定语从句
c where引导，不理解
d 似乎意思正确，但是应该前面是句号时用，否则没有连词，无法连接2个句子
e 逗号后用and是可以，但是时态不对劲，

Answer 4

选B少了连接词and
选c 时态不对
选e时态不对、
选d少了and
所以，and he has been practising law in California ever since是对的