There's[A] not much [B] different [C] in price between [D] the two kinds of milk.改错
I'm a [A] kind of unhealthy [B].I have [C] to exercise [D]. My brother tries [A] {to learn} [B] English.And he practices [C] speak [D] English evevy day.
标大写字母处有一处错误，请找出并改正