在线求指导:My sister isn't at h
My sister isn`t good at maths
在线求指导:She has to stay at h
在线求指导:—Must I finish my h
My sister isn't good at singing.I'm not good at singing,____
My sister is good at ___(sing),but she isn't good at ___(dan
在线求指导:Helen doesn't know h
My mother isn't at home ,so I am b my little sister.
I look______ my sister when my mother isn,t at home
my mother isn't at home,i'm b_____ my sister.
Beth isn't my sister.------mycousin
Gina isn' t my sister. She's
my sister isn't good at her l_____ in his place he f___ bett