He had a weak heart which meant he couldn't walk very far. (so...that)
He had a weak heart which meant he couldn't walk very far. (so...that)
Đáp án: He had so weak a heart that he couldn't walk very far.
Giải thích: so + adj + that: quá...đến nỗi mà...
Dịch: Anh ấy có một trái tim yếu đến nỗi mà anh ấy không thể đi bộ quá xa được.