近期连最简单的一般过去时有什么区别都弄不了解了，来请教一下老师。
A few years ago, after a long morning of sightseeing in New York, my children and Itooka rest on a park bench in Central Park
这里为何不需要 were taking 呢。
Surprisingly, rather than run away, he jumped down and walked casually to a spot on the path, not a metre from where wesat.
这里为何不需要 we were sitting 呢。
想请教一下最简单易懂的关于一般过去时和过去进行时有什么区别。谢谢老师了。
A few years ago, after a long morning of sightseeing in New York, my children and Itooka rest on a park bench in Central Park
这里为何不需要 were taking 呢。
took a rest在此表示状况的转换，即从一上午在纽约步行观光的移动状语向坐在公园椅子上休息的静止状况的转换。这个状况的转换在主语坐下来之后就结束了。然后主句就处于at rest这个状况中。因为动词took的动作发生并结束了，所以不需要进行体。
Surprisingly, rather than run away, he jumped down and walked casually to a spot on the path, not a metre from where wesat.
这里为何不需要 we were sitting 呢。
sit (与stand, lie, live等）为stance verb 即姿态动词。这种动词是动态动词和静态动词分类的中间地带，既有动态动词和特点，也有静态动词的特点。所以在有的情景中，既能够用进行体，也可以用一般体。这个句子就是这种既能够用进行体也可以用一般体的情景。改为进行体也是正确的。not a metre from where we were sitting.