Ⓥ 걷다, 걸어가다, 산책하다 Ⓝ 걷기, 산책, 보행, 도보 I _____ to school every day.

앞면Ⓥ 걷다, 걸어가다, 산책하다 Ⓝ 걷기, 산책, 보행, 도보 I _____ to school every day.
뒷면walk