1. watch for 与 wait for 均可表示等待，它们的区别是什么？2. watch sb do sth 中的不定式不能带 to，watch for sb to do sth 中的不定式是否带 to？3. watch sb doing sth 中 doing 是现在分词，watch for sb doing sth 中的 doing 是现在分词还是动名词？如...
...rom no one knew where, a new flower had come up; and the
little prince had watched very closely over this small sprout which was not
like any other small sprouts on his planet. It might, you see, have been a new
kind of baobab.我的疑问1：我认为这一段：But one day, from a seed blown from ...
... 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 we sat. 这里为什么不用 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的区别。谢谢老师了。
...能用staying 因为stay
既可以作动词又可以作名词）2. 又如walk：walk 既可以作动词又可以作名词，但下面这句walk 作名词为什么用walk 的–ing 形式?为什么不直接用名词形式walk?We can go to Nanchang
by train. It is faster than walking.
...man frightened the Italian with his fist___67___(point) to the Italian’s watch. 给的答案是 pointed 。再去百度上面搜，搜到了另外一个差不多的句子：With her fingers ____ (point)to the broken vase,Mother asked me"Who did it". 给的答案是 poin...
Now, Cao has started
the second part of his dream to walk along the Belt and Road route. He flew
4,700 kilometers ___69___ Xi’an to Kashgar on Sept. 20, ___70___ (plan) to hike
back to Xi’an in five months.这是2022全国卷2的语法填空题。第69题填 from；第70题填 planning。
...
Whether walking or sleeping, the subject is always in his mind.章振邦新编高级英语语法541页。上句walking or sleeping的逻辑主语应该是人，而主句主语是the subject,那为什么不在walking or sleeping前加上正确的逻辑主语呢？上面句子正确吗？