他的极端观点经常引发激烈辩论。

His ___extreme views often lead to heated debates.

该团体以其极左意识形态而闻名。

The group is known for its ___extreme left ideologies.

我不同意这两篇文章，因为它们包含极端观点。

I disagree with both articles because of the ___extreme opinions they contain.