1.When walking along the river,I picked up many beautiful stones.改同义句 When I _____ _____ along
问题描述：
1.When walking along the river,I picked up many beautiful stones.改同义句 When I _____ _____ along
答
walked
答
When I was walking
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.
答
When walking along the river,I picked up many beautiful stones.
同义句 When Iwalked along the river, I picked up many beautiful stones.