Sam and Sandy are my little brothers.____of us like playing football.A Both B All C None D Some
问题描述：
Sam and Sandy are my little brothers.____of us like playing football.A Both B All C None D Some
答
b
表示三者都
答
B.修饰两个以上（不含两个）的，要用all。
答
B 我加Sam ,Sandy 一共三人,both指两人的,不可用!
答
选B