I HAVE A SISTER. MY FRIEND HAS A SISTER, _________.A. SO B. TOO C....

1. - DE KIEM TRA HOC KI 2 LICH SU
DE KIEM TRA HOC KI 2 LICH SU

1. I have a sister. My friend has a sister, _________.

A. so B. too C. either D. neither