Zhongshan Road is much _______(clear) 用适当形式填空.

Zhongshan Road is much _______(clear) 用适当形式填空.
Zhongshan Road is much _______(clear) 用适当形式填空.

Zhongshan Road is much _______(clear) 用适当形式填空.
clearer.

好吧我错了~cleaner

clearer

Cleaner..意思是..中山路(比以前)干净多了.
所以要用比较级.

用比较级 clearer