语法高手进!

1.
The cake was cut into two halves by the woman.
2.
The children were taken good care of by them.
3.
Tom was often seen read in the sun

1.the woman cut the cake into two halves(改为被动语态）
The cake was cut into two halves by the woman.

2.they took good care of the children (改为被动语态)
The children were taken care of by them.

3.we often see Tom read in the sun (改为被动语态)
Tom is often seen (by us) read in the sun.

3
Tom is often seen reading in the sun.

The cake was cut into two halves by the woman.
the children were taken care of by them
Tom was often seen to read in the sun.

1 The cake was cut into two halves by the woman.
2.The children were taken good care of.
3.Tom was often seen reading in the sun .

改为被动语态时，原来的主语如果不重要，可以省略。