This plan is actually impossible to implement.

I think that's an impossible task.

I think that's impossible.

Please always bring your ID at the moment prior to the exam.

His success came to pass due to his efforts.

I first met her on the occasion of a friend's wedding.

When he returned to his country, we saw him off at the airport.

Please execute this program.

We are planning a picnic for next week.

We made a new plan.