He was patiently digging for facts.

Someone is tapping at the door.

No matter what you're studying, I think it's best to study a little every day.

There's no problem with working hard, but it's also very important to know what you're working for.

Starting today, I'll save all my small change so I can buy some new game software.

The clicking of high heels kind of hurts my ears. Do the people wearing them not notice?