He is a man. i am spanish. it is a bird. she is a girl. i am a teacher. you are a student. she is a woman. it is a mouse. you are a doctor. she is a nurse. it is a plano. изменить на множественное

They are a men
We are Spanish
It is a birds
They are a girls
We are a teachers 
They are a women
It is a mice
They are a doctors
They ara a nurses
It is a planos

They are men
They are Spanish
These are birds
They are girls
They are teachers
They are students
They are women
These are mice
They are doctors
They are nurses
These are pianos