1. They can play volleyball. We can play volleyball.

.......................THEY CAN PLAY FOOTBALL AND SO DO WE.................................................................................................

2. Mr. Tam won't come to the party tonight. His wife won't come to the party tonight.

.............MR TAM WON'T COME TO THE PARTY TONIGHT AND NEITHER WILL HIS WIFE............................................................................................................

3. My father didn't drink beer. My uncle didn't drink beer.

...................MY FATHER DIDN'T DRINK BEER AND MY UNCLE DIDN'T , EITHER......................................................................................................

4. She is learning English. I am learning English.

..............SHE IS LEARNIGN ENGLISH AND SO DO I 

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5. I'm not a doctor. They aren't doctors.

...............I'M NOT A DOCTOR AND NEITHER DO I.......