attempt|attempted|attempts|attempting

她试图攀登那座山。

She ___attempted to climb the mountain.

没有合适的工具，尝试修理是没用的。

It's useless to ___attempt a repair without the right tools.

他试图打电话给他的朋友，但线路忙。

He ___attempted to call his friend, but the line was busy.

这是我第二次尝试参加考试。

This is my second ___attempt at the exam.

他们关闭了道路，试图减少城市交通。

They closed the road in an ___attempt to reduce traffic in the city.

他没有尝试去社交。

He made no ___attempt to be sociable.

甚至尝试解释都没有意义——他永远不会听。

There's no point in even ___attempting an explanation - he'll never listen.

他每天都试图解那个复杂的方程。

He ___attempts to solve the complex equation every day.