He abandoned the plan.

They abandoned the old building.

She decided to abandon her journey.

The project was abandoned because of the high cost.

He refused to abandon his dreams.

She is keen to learn English.

He is keen on playing football.

The students are keen to start the lesson.

I am keen to improve my pronunciation.

She has always been keen to travel.

He was jealous of his friend.

She felt jealous when she saw his new car.

Don't be jealous of other people's success.

His brother became jealous of his achievements.

She was jealous because her friend received an award.

We need tangible evidence.

The company achieved tangible results.

There are tangible benefits to learning another language.

The project produced tangible improvements.

Students need tangible examples to understand the idea.

Water is scarce in this area.

Fresh food was scarce during the winter.

Good jobs are scarce in some regions.

Resources became scarce after the disaster.

Clean drinking water is scarce in many countries.

They devised a new method.

She devised a plan to solve the problem.

The engineers devised a better system.

We need to devise a simple solution.

He devised a strategy to improve the team's performance.

The answer is obvious.

It was obvious that she was tired.

The mistake was obvious to everyone.

There is an obvious difference between the two pictures.

His excitement was obvious from his smile.

He was reluctant to speak.

She was reluctant to accept the offer.

The child was reluctant to go to school.

He seemed reluctant to make a decision.

They were reluctant to change their plans.

The rain finally ceased.

The noise suddenly ceased.

The company decided to cease production.

The fighting finally ceased.

Please cease using your phone during the exam.

Sleep is vital for good health.

Water is vital for human life.

Communication is vital to a successful team.

It is vital to follow the instructions carefully.

Education plays a vital role in society.