concentrate|concentrated|concentrates|concentrating

如果你想解开这个谜题，就需要集中注意力。

You need to ___concentrate if you want to solve this puzzle.

那么吵，我无法集中精力工作。

I can't ___concentrate on my work with all that noise.

接下来的几个月，她将专注于她的学业。

She's going to ___concentrate on her studies for the next few months.

大部分战斗都集中在山区。

Most of the fighting was ___concentrated in the mountains.

研究设施主要集中在大学校园周围。

The research facilities are ___concentrated around the university campus.

她连续几个小时专注于研究，不休息。

She ___concentrates on her research for hours without a break.

她正全神贯注于那道复杂的数学题。

She is ___concentrating hard on the complex math problem.