这座塔被归类为历史纪念碑。
The tower is ___classed ___as a historic monument.
综合考虑,这一天可以被归类为成功。
All things considered, the Day could be ___classed ___as a success.
这种新物种被科学家归类为濒危物种。
The new species was ___classed ___as endangered by scientists.