一个英语问题：lt is hard ＿ ＿(finish)this work in so short a time

一个英语问题：lt is hard ＿ ＿(finish)this work in so short a time lt is very hard=lt is very difficult 的hard词性 lt is necessary to study hard at school.同义句 lt is raining so hard that the farmers can ——（hard）continue working on the field. 复变函数洛朗级数化简问题请问图中的第一个等号右边的式子是怎样化成第二个等号右边的式子?<setw(8)<<htree[j].rchild<<setw(8)<<htree[j].parent<<!--<setw(8)<<htree[j].rchild<&l lt is hard work to learn English.换一种表达保持句意不变怎么换 lt is a hard work,but we must finish it.改错 To learn English well is hard for me.同义句 Lt _____ _____for me_____ _____English well 请问一个语法问题；English is hard to study,to study 在句中作什么状语啊 英语：描写冬天的10句话给你举个例子,如：lt is hot.lt is . 一个英语问题,Chinese people are known to the worlChinese people are known to the world as____A.hard workB.hardworkingC.hard workerD.work hard 背这篇文章太困难了,用英语怎么说?lt's ( ) hard ( ) learn the article by heart lt is a hard and small thing.you can use it to open the door or the box.lt is a_______.补充 关于英语词语间搭配的问题,The wind is blowing ____,so ____rain is on the way.为什么第一个空是填hard?不是strongly吗?还是两个都可以? 初学英语问个问题!关于am is arei'm study hard 和i study hard 哪句是对的!有人说应该用I'm studying hard!这个studying是充当什么词啊?当动词用么?但是已经有一个be动词了!可以接连用两个动词么?有人说I' 陆游的<<卜算子 咏梅>>和毛泽东的<<卜算子 咏梅>>共同说明了一个什么问题? lt is to keep pet dogs英语作文 英语作文lt is good to have a penfriends