the boy sometimes goes to school on foot 对划线句子提问划线的是 sometimes 对这个提问 :( )( )does the boy go to school on foot

问题描述:

the boy sometimes goes to school on foot 对划线句子提问
划线的是 sometimes 对这个提问 :( )( )does the boy go to school on foot



填 How often  多久一次


保证准确率~