A small plane crashed into a hillside five miles esdt of the city, ______(kill) all four people on board.
The governments palns to bring in new laws _____(force)parents to take more resposibility for the education of their children.
给出答案 并且麻烦告诉我为什么这样填 充当句子中的什么成分 谢谢了
参考答案 是这样写的
killing
forcing (主要是这个我没法理解)