Regular exercise helps keep your weight in check.

He tried to hold his anger in check .

I will send in the documents tomorrow.

I'm in over my head with this project.

The machine is designed to complete the task in a single pass.

The waves rolled in, bringing shells and seaweed onto the shore.

The recent economic downturn has resulted in a significant downturn in spending.

I have trouble understanding this math problem.

I finished the task in no time at all.

I prefer to meet in person rather than communicate through email.