Soon the wool was lying in a terrible tangle all over the carpet，with the kitten running after its own tail in the middle.running after its own tail in the middle作动名词短语修饰kitten？with the kitten是介词短语？
...纪世界的金融。 为什么题库答案都是D用过去完成时啊？In the book Currency War, the writer has introduced the Rothschild Family, a European legend in finance, who _____ control of the world finance in the 19th century. A. has takenB. tookC. takesD. had taken用过去时B选...
Notonly cancer, but also heart and lung disease are influenced by smoking. 不仅是癌症，还有心脏病和肺部疾病也都会受吸烟影响。请问：句子中的 heart and lung disease 用得对吗？我是说，为什么 disease 不用复数呢？它前面不是有heart and lung 修...
Unemployment on blacks was twice as high as that for white.我不明白为什么第二个as后面为什么要写that for white, 其实我觉得直接写as whites, 就可以了。而且原句中white没加s，我估计是作者笔误。请老师详解，这两个as到底是什么词性？还是不用...
With an average of 70%, the vehicle A's operational availability on the road, was better than compared to 62% of Vehicle B. 这个句子中than后跟了一个过去分词短语，应该如何理解？这样的用法有错误吗？希望老师解答，谢谢！
Business ads on TV, radio and newspaper provide useful and valuable information about a product or service to target audiences, help them to compare qualities of different products and choose the most cost-effective one.请问这句target audiences逗号后无连接词为什么可以直接跟help？
老师好！请看下面一个句子：If each person plays their part—even for just one meal a day—Hong Kong would already be on its way to making considerable progress towards sustainable seafood consumption.请问为什么后面用了虚拟语气，但if从句是一般现在时。
...原则上应该跟一个“时间段”的状语。例如：Tom has worked in this factory since 1990.Tom has studied English for ten years.3.一个表状态的“系表结构”，包括：be +介词短语；be +副词；be +形容词，由于本身具有持续的含义，其现在完成时，跟...