when is he/s birthday?这句错在哪?

when is he/s birthday?这句错在哪? When is Peter' s birthday? When is Yaoming's birthday? When is Peter's birthday? And when is your father's birthday? 翻译When is Mike s birthday? When is petet's birthday 的意思 When is your mother's birthday? When is your friend's birthday? when is your mother,s birthday? When is Queen Elizabeth's real birthday WHEN IS YOUR MOTHER S BIRTHDAY (回答)