一道完成时态的填空题

Tom has gone out. Tom_______. A. was out B. has been out C. is out D. will be out 我觉得应选 A 或 C，但填空题一般只选一个，肯定有一个是错的，不知如何选，请专家指导，谢谢！如题

play off against each other是什么意思

Elizabeth successfully played off against each other the two great Catholic powers，France and Spain. 这里的played off against each other理解不了。each other是什么成分修饰什么？如题

这个last week 是状语还是定语

请看下面这个句子，其中的 last week 是状语还是定语？Because of illness last week, I missed some lessons, but I will try to catch up with others. 如题

关于that引导的定语从句

从cnn上面看的，大概就是this is what happened that scared her. 这里that引导的是定语从句吗？我还从来没见到过that指代名词从句的。求各位解答！如题

It goes without saying that从句

It goes without saying that if someone has lung problems they should not smoke.

ought to可以用作虚拟语气吗

If he started at six,he ought to be there now.没有用should ,而用了ought to,那此时还是虚拟语气吗?如题

so...that...中的so可以修饰动词吗

We have so arranged matters that one of us is always on duty.句子中的 so...that...用得有点奇怪，so...that...中的 so 应该修饰形容词和副词吧，这里的 so 怎么像是修饰动词呢？so...that...也可以这样用吗？如...

动词ing形式与动词不定式的区别

With ten minutes to go, youd better hurry.请问，红色部分为什么是to do，而不是doing？首先理解With ten minutes to go介宾短语引导的原因状语。介宾短语的一般形式是，介+宾。即With（介） + ten minutes to go...

fall down, fall over, fall off, fall down from

请问fall down和fall over都是摔跤的意思吗？两个可以互换吗？

endow sb with 中 with..是双宾语还是方式

Nature endowed her with a beautiful singing voice.They are endowed with high artistic talents.endow是及物动词,为什么还要加with呢?是不是这里的with不是双宾语而是方式? 如题

mine to do with as I wish 怎么理解

2021年高考浙江卷读后续写：

对宾语从句的一个成分进行提问

各位，对宾语从句的一个成分进行提问，比如：你希望人们如何对待你，造句: How do you hope (that) thepeople treat you? 这里的 that 可加可不加嘛？

ever用在过去进行时是什么含义

If we are ever going to protect the atmosphere, it is crucial that those new plants be environmentally sound.此处的ever该如何理解？ever用在过去进行时是什么含义？如题

不定代词somebody,anybody的纠葛

She lost herself in doing homework so that she didnt hear ____ knocking at the door at all.A. somebody B. nobody C. anybody D. everybody很多人选择C答案anybody，但是，我认为A答案somebody更合适，或...

anyone与whoever的区别在哪里

有这样一组正误句子：任何一个干出这事的人都必须抓起来。正：Whoever did this must be caught. 误：Anyone did this must be caught. 上面的误句误在哪里呢？请从语法上分析，句子的意思我懂。如题

插在句子中的短句作什么成分