I f____ tired after walking

I f____ tired after walking ________the boy get tired after walking a long way? I am too tired to (walk还是walking) 为什么? Brave walking to here I was feel really tired after the had work,i was_______ tired 英语I‘m so tired after ____walk 改为否定句 1.They were tired after walking.2.We 否定句 They were tired after walking We took picture in the par Are you very tired after walking?No____A very B much C that she was very tired after walking for three hours.中为什么用walkin He was tired after walking so long .为什么动词是ing形式的? I feel tired after a day's work 跟I felt tired after a day's