请教们：In the past，a household is not so rare with four generations living together. 中为什么过去却用is，有人说叙述为了生动，是这样吗？谢谢们了。如题
This is because he can make 72 changes to his shape and size, turning himself into different animals and objects.这里句末的现在分词短语是什么成分？具体什么状语？另外，to hi...
thank有没有过去式和现在进行时！一定要准确答案。如题
The headmaster was pleased with what we did. He praised us and also encouraged us to do more to protect the environment.
如题
They believe the datesupport an idea current among marinebiologists, that of the “shifting baseline”.红色部分要如何理解？激起思想潮流 还是 支持当前的想法？如题
how to do整体是理解为名词吗？我总是习惯还原句子。比如where are you fron 还原就是you are from where,i do not know how to do 还原就是i do not know to do how...
各位好，以下是我写的同义句，请问是否有不足？敬请雅正！Q1：3，4，5句的非谓语动词形式是否正确，是否要替换为to do/to be doing/to have done?我更倾向于to having done。Q2...
She has gone to buy some books.这句话里的不定式是目的状语？
We don’t really like the teacher.
He was arrested and sentenced to three years in prison. 虽然是被动句,但已经不是不定式了,那这时to three years in prison 还能看作主补吗?如题
Here are two pens in the box.
Cutting across this is the major category contrast.
最近有网友给管理员发消息说，希望给帮助过自己的专家赠送鲜花。特说明如下：
请分析一下这个句子：As for the literature, painting, and sculpture of Aframericans--such as there is--it is identical in kind with the literature, painting, and scu...