...答案上说选A，我感觉有歧义，一道选择题，没上下文）When Alice woke up, she did not know how long she ( ) there.A. had been lyingB. had lain请问老师，为什么选a，选b就一定错误吗？这题严谨吗？我先说一下我的理解：假设：x（过去的过去）...
...种用法可以讲以下吗，谢谢。A boy was walking home from school when he saw a large, tempting(诱人的) apple on one of the branches of an apple tree hanging out over a tall fence. The boy wasn't much of a fruit-eater, prefering a bar of chocolate if given the choice, but , as they say, t...
A century is, geologically speaking, a very short period of time. And so is a thousand years.上句中的And so is ...中so 是什么用法和含义? And so is a thousand years 主语省略了吗？so表示强调吗？
...egarded as a similar kind of watershed.(1)that是什么用法？是image的定语从句的关系代词还是对应前面的all？(2) home delivery如何翻译？后半句” no single innovation has come close to being regarded as a similar kind of watershed”是什么意思？怎么理解？
That explanation appeals to common sense and has dominated efforts to get to the root of the obesity epidernic and reverse it.怎么区分是过去分词做前置定语还是现在完成时结构? 谢谢！
...因为当时在乡下只有体力劳动能够赚一点钱，也就是说我只能去做一个童工。但禁不住我的再三请求，同时也想让我受点磨炼，他们终于答应让我试试。That year, when I
was only 12 years old, and the first semester of Junior Grade Two was just
over, ...