Question

John ,you work much harder this term than before . Yeah ,_A___ and ___in our class because we a...

John ,you work much harder this term than before .
Yeah ,_A___ and ___in our class because we are Grade 3 .
A.so I do ,so do others B.so you do , so do others
C.so do you ,so others do D.so do I ,so others do 可以讲一下为什么选A吗

Answer 1

前后只涉及一者时，不倒装，答语中的第一空格中的I=John, 指同一个人，故不倒装；前后涉及两者时，必须倒装；答语中的第二空格others只另一者，故必须倒装。所以正确答案为A。

Answer 2

so I do= so I work much harder 表对上面那个人说的话的赞同 简单语法
so do others=others work much harder too 表相同 固定搭配，死记

Answer 3

你好，很高为你解答。
则so+sb.+助/be+情态动词
表示某人确实如
此
而so do/be/情则表示某人也是