The amount of time spent on a task should be in proportion to its importance.

The product is currently in-process.

I have difficulty in understanding this concept.

They walked down the street arm in arm.

His comment was tongue in cheek.

I need to get in contact with my friend.

I like to do things in order.

In a bid to reduce pollution, the government implemented stricter emission regulations.

I hung in there until the end of the marathon.

The park lies in the center of the city.