题目内容
根据句意,用括号中所给单词的适当形式或句子的语法要求填空。
My sister ________(be)a singer since she left the school.
答案:has been
练习册系列答案
相关题目
题目内容
根据句意,用括号中所给单词的适当形式或句子的语法要求填空。
My sister ________(be)a singer since she left the school.