句型转换 1.The headmaster saw the children playing on the playground.(改为复合句)
问题描述：
句型转换 1.The headmaster saw the children playing on the playground.(改为复合句)
1.The headmaster saw the children playing on the playground.(改为复合句)
The headmaster saw the children _____ _____ on the playground.
2.The headmaster saw the children play on the playground.(改为复合句)
The headmaster saw the children _____ _____ on the playground.
答
1.were playing
看到学生在玩耍,正在进行.
2.played.
看到学生玩耍的整个过程
第二个怎么填两个词不会.