三年级下学期常见句子Who are the children? They are my cousins.Whos the short girl with black hair? Shes my sister.Whos David Webb? Hes my brother.Do you have any cows? Yes, I do. Do they have a sister? Of course, they do. / Is Susan your sister? Yes, she is. Is Jim your uncle? Yes, he is. Is her hair long? Yes, it is. Is that a bull? Yes, it is. Where are you from? I am from Australia Where is J