Question

-We have many rules at school.

-________.

1. A.
   So we do
2. B.
   So do we
3. C.
   We have so
4. D.
   So we have

Answer 1

B
“so+主语+动词”表示“的确如此”，“so+动词+主语”表示“也”，前后两部分在时态上应该保持一致。当表示“也不”时用“neither/nor+动词+主语”来表达。