study (v)

她仔细研究了这份报告才做出决定。

She took time to ___study the report before making a decision.

我的笔友学习汉语。

My pen pal ___studies Chinese.

学生们正在一起学习。

The students are ___studying together.

我得赶紧复习，明天就要考试了。

I have to ___study hard tonight for the test tomorrow.