1,My father took my baby brother to the baby hospital half an hour ago. 2,The flowers come out and turn the tree green.【注意所给 动词 的人称为 复数 原形, 主语 只能是flowers.】 3,【注:题目是不是多了一个these——只有一个复数名词countries与其中一个these搭配。请查证。】 English is(be) the first language in none of these countries.