1.When walking along the river,I picked up many beautiful stones._英语解答

1.When walking along the river,I picked up many beautiful stones.改同义句 When I _____ _____ along

人气：362 ℃　时间：2020-01-29 22:15:09

解答

因为是两个空,所以应该是：
When I __was___ __walking___ along the river,I picked up many beautiful stones.