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问题 去某地中介词to什么时候不要

I haven't been to anywhere this summer.为什么这里需要介词to，而go somewhere 就不需要。

问题 表语形容词

...词吗，说明主语you吗？不太懂这个成分，麻烦您分析一下In order to be successful you must market your product.2请问老师，be后面的successful属于表语形容词吗，说明逻辑主语him吗？I want him to be successful.

问题 hear sb doing sth 与 hear sb do sth 中二选一

Listen! I hear someone _____ (knock) on the door.语法书上说，hear sb doing sth与hear sb do sth 都可以说，只是意思有区别——hear sb doing sth表示动词在进行，hear sb do sth 表示动作的全过程。但就上面这个题目，感觉填 knocking 或 knock 都可以。是...

问题 still 还是 yet

Original text:At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelligence; but at this age the likelihood of death is least.____ reached its full size and strength.(a) It hasn't before (b) It hasn't ev...

问题 for children是整个句子的逻辑主语

The kindergarten had many toys for children to play with.老师，to play with是作定语修饰toys; for children是逻辑主语？

问题 介词 despite 可以连用 be 吗

The portion of Americans aged 18 to 29 who claim to have had no sex for 12 months has more than doubled in a decade—to 23% last year. That is, counter-intuitively, despite the removal of many impediments to sex.介词 despite可以连用 be 吗？比如最后一句话。

问题 man, woman 用不用冠词的问题

man 和 woman 作为可数名词，它有时前面不用冠词，觉得很奇怪。如：Man has a free will. 人有自由的意志。Man is engaged in a constant struggle with Nature. 人与大自然进行不懈的斗争。麻烦老师解答一下，谢谢！

问题 如何理解时间名词后接where从句

...这里为什么用 where 来引导定语从句，而不用 when？难道时间名词后面也可以用 where 来引导定语从句吗？

问题 as介词短语作什么成分

The equation is a representation of x[n] as a linear combination.  请问一下老师，这句话中as a linear  combination 这个介词短语是什么句子成分？这个短语是修饰representation呢还是修饰x[n]呢？我个人推测是定语，但不知道修饰前面哪个名词。

问题 Kaplan the butler 是什么成分

Kaplan the butler held a can of gasoline—he called it petrol 句中的 Kaplan the butler 是什么成分 怎么理解呢，同位语么？不可能啊？

问题 on 在难句中的用法

The auditor should obtain written representations from  management on matters material to the financial  statements when other sufficient appropriate audit  evidence cannot reasonably be expected to exist.请问大神on在这句话中的含义和作用？

问题 为什么主语用to do 而不是doing

... development and eradicate hunger and poverty remains a major challenge of the world and a common responsibility of mankind。促进农业发展，消除饥饿和贫困，依然是世界面临的重大挑战，也是全人类肩负的共同责任。请问为什么是“ To promote agricultural deve...

问题 定语从句可以用of whose吗

以下两句话：This is my mother. 和 Amy is a friend of hers. 其中hers指的是my mother's. 请问这两句话可以合并成 This is my mother, of whose Amy is a friend. 吗？如果不行的话该如何合并呢？

问题 disappearance后面怎么是by

这里应该用of吧？比如：Police are investigating the disappearance of a young woman.警方正在调查一名年轻女子的失踪案。

问题 句中是否有错

...er disinterested in global business or, staffed by bureaucrats and stuffed with bad debts, are uncompetitive abroad.1、uncompetitive前面的are是否应该去掉？2、 staffed by bureaucrats and stuffed with bad debts理解为伴随状语或原因状语都可以吗？