变压器电压等级和容量

When ____this story____(take)place?No long ago 为什么用did,takeWhen ___his hotel ___(built)Before 2000为什么是was和bulit There is sb doing sth.这个句型的用法它表示的是正在做吗?doing是进行时的分词吗?doing是句子中的什么成分? there is no use for sb doing sth Tthere is no use （ ）her about it any more.A.asking B for you to ask 选A 如果B 变成for you asking 用there is sb /sth doing sth,stop sb (from) doing sth造句 there is something wrong with sb doing原句 there is nothing wrong with you and the boy being friend and studying together.后面为什么是being ,studying?再说下 我是没查到有there is something wrong with sb doing这么个结构 所以才 there are sb doing sth中doing sth作什么成分 The story took place in____A.1978B.1978'sC.the 1970's为什么不行啊.In 几几年 可以啊 英语翻译为什么不是the story was took place in 1984?be动词怎么用的 what time is it it is ______ A.at 7:00 B.half past seven c.half to seven D.seven halfwhat time is it it is ______ A.at 7:00 B.half past seven c.half to seven D.seven halfis that boy over there dava?______.That boy is short,but Dava is tall 14.The story took place in a small town on a spring morning.A.took up B.happened C.was heldD.began15.If you don't go to the party,____.A.so do I B.neither do I C.neither will I D.Either does he16.Ms.Wang Qifeng,a famous ballet dancer,____us a lecture What is the time?-____.A.It's half to seven.It's half past seven the funny story took place in class yesterday还是要用happened啊?happen 和take place的区别是什么啊?要怎么用呢? ____ do you go to school?at half past seven.里填when 还是填what time为什么 what time is it now?It's 7:49.It reads-------.A.seven forty-nine B.seven and forty-nine ——What time is it ——It's （）half past seven.We have Chinese （）7：30.A.at,at B.about,atC.\,about D.on,at(选择） There are three thousand students in our school,___________are girlsA of whom two thirds B two-thirds of them 为什么 help sb doing sth有这种说法吗? There are three thousand students in our school,_________are girlsA of whom two thirds B two-thirdsB后加of them 为什么选B加and？ help sb doing sth 关于 help,有 help sb doing sth 这个用法? There are three__students in our school,but only one __them are girls.请问答案是什么A.thousands,thousands of B.thousands,thousand ofC.thousand,thousands of D.thousand ,thousand of help sb in doing sth &help sb to do sth二者有什么区别,如何用?它们是不一样的，谁给我说出区别我问的是用法 请问有没有help sb.with doing sth. Do you like to work evening and weekend?的中文翻译 英语翻译 There are three h____ teathers in our school快点 速度 There are three boys in the classroom .There are some libraries in our school .(对斜体部分提问) Tom has a ping-pong ball 3Q All time is no time when it is past.什么意思? Tom have a ping-pong ball?A.Do B.Does C.Is D.Are 改为一般疑问句和否定句：TOM has four baseballs and a ping—pongball. Tom has a basketball.【改为否定句】 come along