$\text{8.They drank milk and so we do.}$

   $\text{They drank milk and we do too.}$

$\text{9.She played tennis and so he does.}$

   $\text{She played tennis and he does, too.}$

$\text{10.I watched TV and so he did.}$

   $\text{I watched TV and he did, too.}$

$\text{11.I am tired and so she is.}$

   $\text{I am tired and she is, too.}$

$\text{12.We buy some bananas and so he does.}$

   $\text{We buy some bananas and he does, too.}$

$\text{13.She doesn't like beef and I don't, either}$

   $\text{She doesn't like beef and neither do I.}$

$\text{14.They can't speak English and he can't, either}$

   $\text{They can't speak English and neither can he}$

$\text{15.We didn't live in the city and they didn't, either}$

   $\text{We didn't live in the city and neither did they}$

$\text{16.He loves rose and so do I.}$

   $\text{He loves roses and I do, too}$

$\text{17.I won't go to the zoo and they won't, either}$

   $\text{I won't go to the zoo and neither will they.}$

8) They drank milk so did we 

9) She played tennis, he did too

10) I watched TV so did he 

11) I am tired so is she

12) We buy some bananas so does he

13) She doesn't like beef neither do I 

14) They can't speak English neither can he 

15) We didn't live in the city, they didn't either

16) He loves rose so do I 

17) I won't go to the zoo, they won't either