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问题 谓语动词的数量

请问老师，He sang and danced in the lawn. 这句话的sang和danced是两个谓语动词还是算作一个整体？一句话只有一个谓语动词的说法是否正确？

问题 英语句子改错

献上改错题一道，与大家分享:Ha Jin is an eminent Chinese-American writer noted for both his novels and even poetry. 此句中有一处错误请改正。谢谢！（难度系数：一般）

问题 句子翻译

It was when i mentioned casually that it came frome Latin and meant "blessed" that his fate was sealed. 请问老师meant "blessed" that his fate was sealed.中的that起什么作用，这句子如何翻译？

问题 难句理解

Besides, we can improve the technology of tracking user’s movement, which requires cameras and beacons to be applicable. 请问老师，这里的to be applicable做什么成分？应该如何理解？

问题 比较级的疑问

It is getting hotter and hotter.It is getting hot.  这两句有何区别呢。意思都是一样的么？

问题 since做副词

Weaver has since died of a heart attack, and the case remains open.此处的since是不是单纯作为副词，表示类似于“那会已经”的意思？

问题 翻译问题

And our efforts to achieve these goals hold out great potentials for development.问：这句中hold out 是啥意思啊？我查字典(朗文)1.抱有希望2.维持3.守住4.坚持，可放进去都不通啊，那倒底此短语还有什么意思？

问题 句子正误判断（涉及时态）

When I turned off the lights in the office, I locked the door and left.这个句子对吗？

问题 逗号句

1. One has buttons and the other hasn't.2. Some people enjoy exercise, others don't.以上两句来自语法书，两句结构一样，为何第二句话的两句之间用了逗号？不是应该用连词吗？谢谢老师。

问题 问题讨论：It will be a guide for teens using…的用法对吗

...《英语基础模块·练习册2》的第80页有这样一句：Teachers and parents all think the book is a very good idea. It will teach students how to be a good person in the online world. It will be a guide for teens using the Internet and keep students away from bad sites.请大家讨论一...

问题 分词成份

That is the issue being tackled in an official review of postgraduate education currently being undertaken by the Department for Business, Innovation and Skills.请问老师，being undertaken 是修饰education的吗？如何理解本句？ 

问题 分析句子结构

National Geographic Expeditions grew from this legacy as a way to invite others to explore and encounter the wonders of our world up close.可以帮忙分析一下句子结构吗？

问题 necessary 后置的用法

Then, and only then, are his services necessary. necessary 可以后置吗，是表when neccessary的意思？还是省略了that is

问题 句子分析

只有徘徊，只有匆匆罢了。Nothing but to hesitate， to rush.请问老师，1.这个句子nothing but是可以独立成句吗？2.to hesitate和to rush没有and连接是因为它在不完全列举吗，但是感觉中文句子没有不完全列举的意思。

问题 as 用法

The potential conflicts of are not that exist between investors and those who have been hired to run the business are not as relevant. 请问as在这里的用法？