We have been working on this project for ten months.

He is completely nowhere to be seen.

The destruction of the ozone layer has a significant impact on the Earth's climate.

He is respected as the head of state of our country.

He is opposed to the ideology of extremism.

She was always supported behind him, hidden from view.

I have been studying Japanese for six months.

He is recognized as the head of state of that country.

There's a proverb that says 'speak of the devil and he shall appear,' and sure enough, he showed up.

Extremism threatens the stability of society.