1. I often see a girl do some reading on the playground

来源:百度知道 编辑:UC知道 时间:2024/05/10 09:45:28
2. Children usually give some flowers to their mothers on Mother's Day
改为被动语态

楼上的不对
1 A girl is often seen (doing some) reading on the playground.括号里的可以省去,那样的话reading就变为动词了
2 Mothers are usually given some flowers on Mother's Day by their children.

1.A girl is often seen do some reading on the play ground.
2.Some children's mothers are usually given some flowers on Mother's Day.