问题描述：
just在现在完成时时要放在句子的哪个位置
有2句话 哪句话是对的?just应放在哪个位置?
He just has received a letter from his father.
He has just received a letter from his father.
有2句话 哪句话是对的?just应放在哪个位置?
He just has received a letter from his father.
He has just received a letter from his father.
问题解答：
我来补答展开全文阅读