请选择AB'L8|1Q+a早上你在来上学前和爷爷奶奶道别,可以说:5M:V-z8K-r8S+O7l,[-N;~7B2I5}
A. Good bye.5M:V-z8K-r8S+O7l,[-N;~7B2I5}
B. Good night.5M:V-z8K-r8S+O7l,[-N;~7B2I5}