Tom is focused.

He's focused on this hyena, and he is going to get it.

I'm incapable of staying focused.

Then working concentrated, without being frazzled.

This is where our sampling effort has concentrated.

Inhaling concentrated acetic acid can harm your lungs.

I study at school.

It was at school.

It's an Arabic medium school.

I walked in to school.

I left it at school.

Moreover , the currency 's international role is geographically concentrated in regions that are close to the euro area .

Now that we have concentrated sunlight, what are we going to put at the center to convert sunlight to electricity?

School, same thing.

School begins in spring.

School begins in April.

We learn English at school.

We go to the same school.

I study hard at school.

Tom is still at school.

Don't whistle at school.

I'm still in school.

I learned it in school.

We learn French at school.

I study French at school.

He has problems at school.

She has problems at school.

We wear a uniform at school.

I got held up at school.

I learn French at school.

We did that at school.

How is school going?

I did that at school.

I did that at school.

I did that in school.

I did that in school.

I left it at school.

We met at the school.

Do you provide school lunch?

For too long the western world has concentrated on Israel in the Middle East and the Gulf region.

President George W. Bush was more focused on his global war on terror.

You can do Self Organized Learning Environments at home, in the school, outside of school, in clubs.

Were you at school at that time?

You are not supposed to smoke at school.

Bob is popular at school.