下面一句摘自《薄冰高级英语语法》，这里为什么用 one time 表示一次，而不用 once 呢？ The test question will be spoken just one time, you must listen very carefully in order to understand what the speaker has said. 试题只念一遍，考生必须仔细听，以...
Do that for another two hours, you might be where I am right about now.是否是省略了If you的条件状语从句If you do that for another two hours, you might be where I am right about now.
...ing cows）?第二个that是不是引导主干句里thing对应的同位语从句（that the old cows stand up to the dogs, but with
the drones, they've never done that）? 最后一个that是不是指代the old cows
stand up to the dogs？请老师纠正指导，谢谢！
一般认为过去分词作定语与不定式被动式作定语的区别是：不定式作定语表示尚未发生的动作，而过去分词作定语则表示已经发生的事情。如：The plan to be discussed tomorrow is about investing our money in a new business enterprise. The plan disc...