Today is my son's birthday、Among those ____( invite)are some

Today is my son's birthday、Among those ____( invite)are some Today is Susan's birthday .Among those ____ are some old fri 几道英语选择题求解释1.today is susan's birthday.among those（） are some 适当形式填空 Today is my son's ____(nine) birthday. Today is my mother's ____ birthday. today is my son's eight birthday.哪错了? Today is my son's birthday,I wish my son Happy 3 Today is my sister's ____（九岁) birthday. Today is my sister's ____（20）birthday. today is my brother's fourth birthday. Many friends came to my son's ____ birthday.(nine) Today is my father's ____(四十)birthday.是填基数词还是序数词?