many places have been flooded by heavy rainfalls, so they cannot walk ______they like these days.a

D

这句话的意思是因为下暴雨,人们不能行动自如, A和B表时间,意思明显对不上, C和D比较,D更好,WHEREVER,各处,随便哪里的意思.

as

whenever

不是喜欢何时散步就何时散步.

many places have been flooded by heavy rainfalls, so they cannot walk wherever they like these days.
很多地方都遭受了暴雨，所以这些天人们不能像以前一样想去哪里就去哪里。