...语正误用法指南》商务印书馆）He committed himself to helping the
poor. 他承诺帮助穷人。（《韦氏高阶美语英汉双解词典》外研社）She applied herself to learning English.
她努力学习英语。（《张道真英语语法》商务印书馆）He resigned himself to...
...高阶英汉双解词典》 attention 条的一个例句：A good teacher is always attentive to their students' needs. 一个好的老师总是对学生的需要很关心。对于句中的物主代词 their 我不是很理解。我觉得 A good teacher 应该对应单数物主代司 his，而...
One thing they can do is to switch from making a less in demand product like papertowels to more toilet paper.他们能做的一件事就是从生产需要的较低的纸巾等产品，转变成生产需求更多的卫生纸。我看不懂句子结构“making a less in demand product like paper tow...
Table tennis, also known as ping-pong, is a sport in which two or four players hit a lightweight ball back and forth across a table using small rackets. 请问，为什么说这里的in which不可以用that代替呢？ (这个in which是充当从句的哪个部分？)
...said sorry and helped him ____2___(look)for his watch , at last they found it under a chair.我1写的是heard，2是looking答案是1 hearing, 2 look我有点不明白了，想表达“听完以后”用after+Ved不对吗？还有后半句的帮他找手表，不应该用helped him looking fo...
There is a column called“Foreign Culture”，（aimed）at introducing
American customs.括号里可以填being aimed吗？可以的话两者有什么区别？只有表示“正在被….”意思的时候才能用be being done这个短语吗？像be加过去分词加介词这种结构的非谓...
...问题，斗胆问一下，比如说：as if引导的从句对过去虚拟it seemed as if he were studying我想知道的是：1.如果把were换成was是不是就变成了陈述语气而非虚拟语气2.如果把seemed改成seems，把were改成was是不是就变成虚拟语气了？3.were型虚拟...
Discussing (讨论) with your classmates is good for your study.老师：您好！这里的Discussing是不是也可以换成To discuss,动词不定式做主语。答案只给出了：Discussing，没有给出To discuss. 希望老师能帮我分析下！