写英语长句时除了定语从句，还有什么别的可以用的？

在用过去式造句时，什么时候用HAVE 什么时候用HAD？THX！ 最好能帮我分别举个例句，谢谢！

want get help,thx~try to written about my experience of join spoken english class. 我的英文很差，写些短句子还可以应付。但组织一篇文章，句子之间还需要非常有条理，这对于我而言太难了。以前参加英语考试，150分的英语考卷，作文只占30分，而且太难了，所以用英文写作时我的一个弱项。我只能慢慢练习，慢慢试。哪怕很丢脸。 我最近参加了一个英语口语锻炼班，从小学习英语大部分都是听老师说，然后做练习题，很少有真正开口去练习英语的机会。当外教老师开口全是英文时，我只能竖起耳朵集中全部注意力去听，这真要我的命啊！而且我很沮丧地发现我的词汇量太少了，很多单词我都不知道是什么意思。很多单词我要思考很久才能反映过来是什么意思。 当我自己开口时，我才发现平时生活中不使用英语，突然要流利地表达自己的想法是多么困难。第二次我就学聪明了，我用手机上网查自己需要的单词，情况好了一些。我感觉好多了，希望下次上课时我能说的更流利些。 希望大家能通过这篇文章指出我学习英语的毛病在哪，我现在不知道如何长进，好像止步不前了。多谢。 my english is so badly,i could be equal to make some short sentence,but it's too hard to me that wirte an article and be well-organized.Had join english exam before,written just take 20% of one 150 point system examination paper.and too hard,so wirtten was my weak spot.I only can practice more.although will lose my face. Recently i take apart of lesson for practice spoken english.i always listen from began learn english with tearch,and do some exam on paper,few chance to speak.i must listen with strained ears and pay all of my attention when foreign tearch open mouth just english,it's kill me.and i feel depression that i found my vocabulary was so poor,so much word i can't understand or after a longt time to think. when i open my mouth to talk,i feel diffcult to express myself fluently that never speak enlish in always life.so in second lesson,i use my cellphone to check words that i need in internet,i feel better.i hope i will express clearly in next lesson. hope u can point my wrong of this essay,i dont know how to improve my english,thank u so much!

Ask a stupid question,How to say"我曾去过那儿。"in english?thank u~

Who know how to say "油条" in Eglish? If you are not Chinese , do you know "油条" ? and how to say ?

If your friend want to hurt u,what will you do? If your best or average friend want to hurt you,what will u do?