ln的导数公式

Parents should learn to keep their children often____their mind.A.using B.being used C.ha...Parents should learn to keep their children often____their mind.A.using B.being used C.have been used D.to use解题思路 parents should be allowed to pursue any treatment to keep their child alive什么意思,知道的说下谢了 should parents make their children promises they can't keep? The United States is a strong country.错没,包括大小写 Let me have a look.同义句转化 I___ ___have a look look.the man with his friends ( )at the pool.括号里应填：is swimming或are swimming 8.Swimming in the pool with friends _________ very interesting.A.has B.have C.is D.are8.Swimming in the pool with friends _________ very interesting.A.has B.have C.is D.are that从句可以做介词的宾语吗?就是介词后面紧跟着that的那种的,语法书上说不行,但我看到了一个例子He differed from his classmates in that he devoted his spare time to reading .此句中,in that 2.It’s said that he ___ sent to Australia to improve his English. It is said that he( )sent to Australia to improve his english.A would be B was to be C has been D had been 这个题我感觉选哪个都可以啊!尤其是后两个选项 据说后边应该用什么时态 "It is said that he has gone to Australia"里的it's said是什么意思said是过去分词 跟在is的后面只有被动语态才符合 那这哪里被动了呢 It will be cold tomerrow.What can you wear?这个题我不会做了,答案是在冬季,应该穿什么衣服?求求, In the second photo.I am swimming at the pool with my friends.为什么要用am swimming? i always ( ) ( )the swimming pool with my friends . 怎样区别文言文的定语后置和宾语前置?怎样区别呢?我翻译后觉得都可以..尤其是"求人可使报秦者,未得",谁能帮我分析一下这一句? the sun is s___in the west初三英语啦 .急 中国打美国航母想象图,这很难以想象. now that the country (has joined)the WTO,China meets WTO callenge.为什么括号中用现在完成时,而不是一般现在时?WTO的挑战是不是也可以写成the callenge of WTO呢? they are interesting inthese animal 改错 are there different kind of animal on the earth改错 In the first photo I am swimming with my friends in the pool哪里错了 Swimming in the pool with friends_____very interesting 填is还是are,为什么 There are many animals and p（ ）on the earth there are lots and lots of animals.为什么这么说啊? ( )the farm,there are lots of animals.填介词 one more I can play the guitar 对划线部分提问（playtheguitar） 匹克的广告词：（I CAN 那么I can play意思是:我能行! i can play hula hoop是什么意思 you can write things,catch things with them. I can play?老巴的那一句I can play 什么意似? the boy made his sister ____(cry)