promising

他在受伤前是一名很有前途的足球运动员。

He was a ___promising football player before his injury.

她是一名很有前途的学生，所有科目都很出色。

She is a ___promising student who excels in all subjects.

她是一位有前途的年轻科学家，未来前景光明。

She is a ___promising young scientist with a bright future ahead.