问题补充：
You say he works very hard, and .
A. so does he, so do you
B. so does he, so you do
C. so he does, so do you
D. so he does, so you do
答案：
A. so does he, so do you
B. so does he, so you do
(答案→)C. so he does, so do you
D. so he does, so you do
解析：so do you 倒装，表示你也是这样，so you do不倒装，表示对前句话的认可。
