What's (his/her) name?
his
is it a cat?
no it isn't
(is/are) the man running?
is
is she happy?
no she isn't
is the man walking?
no he isn't
Are they brothers?
Yes they are
is the phone green?
yes it is
(Is/Are) they girls?
Are
Are they dogs?
No they aren't
One man and (his/her) shoes
his
Is she strong?
Yes she is
Are they boys?
No they aren't