loom|loomed|looms

如今，环境问题在许多年轻人的心中占据着极其重要的位置。

Environmental concerns ___loom ___large in the minds of many young people today.

一个黑暗的身影在门口隐约出现。

A dark figure ___loomed in the doorway.

随着期末考试的临近，考试的压力对所有学生来说都迫在眉睫。

With finals approaching, the pressure of exams ___looms large for all students.