Completa las siguientes oracion con el pronombre relativo adecuado

i found a wallet ___ was full of money
a) which b) whose c) who

this is the dentist ___ wife is my boss
a) whose b) who c) which

the man ___ is looking at us my ex- girlfriend
a) who b) which c) whose

i have a friend ___ won the lottery two years ago
a) who b) that c) which

that man ___ i met yesterday at the disco is my biology teach
a) that b) who c) which

george, __ father is a doctor is a nice boy
a) whose b) who c) that

the woman ___ use a red dress is my mother
a) who b) whose c) that