教育标准在持续下降。

Education standards are continuing to ___fall.

空置了30年，这栋建筑已经破败不堪。

Empty for 30 years, the building had ___fallen into ruin.

这座令人印象深刻的、巨大的18世纪建筑，直到最近（5年前）还是市政厅，现在已经废弃不用了。

This impressive, massive 18th-century building which accommodated the Town Hall until recently ___5 years ago has now ___fallen into disuse.