His brother has a baseball.（改为一般疑问句）_______ _______ a baseball?
问题描述：
His brother has a baseball.（改为一般疑问句）_______ _______ a baseball?
答
Does his brother have
答
does he have
答
does his brother have a baseball?
答
Does his brother have a baseball?
改一般疑问句助动词提前就行！
因为his brother 是第三人称 所以用单数 就用does
如果是you,就用are:are you ,do you
答
一般疑问句：
Does his brother have baseball?
他的哥哥有一个棒球吗?
His brother has a baseball.
他的哥哥有一个棒球.