首页 / 初中英语 / 试题详细
  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1698

When he is free, he often helps his parents ________ some housework.

A.does B.do C.doing D.did
登录免费查看答案和解析

Whenheisfree,heoftenhelpshispa