They saw a boy playing on the street.（被动）

They saw a boy playing on the street.（被动） Peter saw a little boy---on the corner of the street.为什么答案是c the boy can't ( )on the see-saw A、play B、reading C、playing D i see a boy playing on the playground怎么 变被动句 They saw a man running on the street 这是不是现在进行时? Yesterday I saw a man （）in the street ,with a little boy ()o I saw the missing boy playing with birds in the forest变被动语态 将主动句改成被动句①I saw the boy enter the room.②Will they show a new I saw they were playing basketball on the playground.（改为简单句） I saw a boy (crying( in the street yesterday (划线部分提问） While( )on the street,she saw a wallet( )on i saw a boy.the boy was playing with a cat.