问题 once不可以和现在完成时连用，before却可以

I once have had a job on a cruise ship ×I have had a job on a cruise ship before ✓

问题 I'm hoping that you will give us some advice为什么不是future action.We are meeting the visitors after the performance 就是future action.

怎么判断一个句子是future action

问题 分析:Wear a mask on days when there is heavy pollution.

Wear a mask on days when there is heavy pollution.请帮忙分析句子。

问题 I feel happier here than I've ever felt的时态问题

老师您好，请问英语句子I feel happier here than I've ever felt里than引导的从句为什么要用现在完成时态?谢谢老师!

问题 minimum wage前面为什么没有冠词

I’d earn minimum wage. I’d see how a factory worked.本句来自2021年新高考全国乙卷（全国卷I）的完形填空，请问minimum wage前面为什么没有冠词？

问题 sit on 是什么意思

...he had his plow that they had burned for fuel, he could plow the land. But when he thought of this as he did many times every day, he felt helpless as a leaf tossed upon the flood. The buffalo was gone; gone also his plow and every implement of wood and bamboo, and what other had he? Sometimes in th...

问题 季节、 月份、星期前的冠词使用问题

...一般不加冠词，然后给出Spring is my favorite season或Spring is the best season of the year等例句,这种例句里面的spring都是泛指,所有理所应当的不加冠词,因为牛津字典说spring既是可数又是不可数的名词！然后又说谈论具体的季节时常用定冠...

问题 引导状语从句的连词后加that的问题

... a decision. （that可以省略）Seeing (that) he is determined to carry the project through, I helped him.（that可以省略）老师们，比如以上引导状语从句的连词加的that，这个that是什么意思呢，这些连词本来不就可以引导句子吗，为什么还要加that？

问题 I ran home 和 I ran to home 有什么区别？

问题 句子中多个动词如何分析谓语

老师好，今天课上英语老师把我的句子改成“when it is convenient,I hope you can send me an email”中，我很疑问can加send不是构成了谓语吗，那hope又做什么成分呢？

问题 as 是什么意思(引导什么状语)

Her elegance and style will always be remembered in film history as evidenced by her being named to Empire magazine's "The Top 100 Movie Stars of All Time".as 是什么意思，在这里是引导什么状语吗？又有个by 。怎么分析这个句子结构呢？

问题 句子成分分析

...。此处being前是否省略了about，所以being是动名词？It's the best way to get access to Reed.这里搞不清楚to Reed是access的地点状语还是定语？如果直译的话是要翻译成“这是最好的得到接近里德的途径的方式”吗？I come in peace.这里in peace...

问题 结构分析：I Just came back last Sunday.

...么结构？介宾？状语？能不能列举所有情况？3.He failed in the exam.是主谓介宾还是主谓状语结构？

问题 when从句省略

Sleep-producing drug should never be taken except when suggested by a doctor.请问老师：when (it is) suggested by a doctor，这里是省略了it is吗？

问题 digital的第一个i字母是重读开音节为什么发i音不是发ai这个音

digital的第一个i字母是重读开音节为什么发i音不是发ai这个音?