He took an unscrupulous action.

He begged his friend to lend him some money.

I was stung by an insect while playing in the park.

He fought like a true warrior.

He worked on his job audaciously.

He was working with audacity.

His swordsmanship is truly matchless.

In ancient documents, it is written that they were delighted to see the rice grow.

This area is a waterless zone, and there is a severe shortage of water.

This problem is a piece of cake for me.