有无错?如果错了,错在哪?when i was studying in the class.此句是过去式的.意思是我在上学时,在教室,并没有正在上课,是在课余时间.用这句对吗?

有无错?如果错了,错在哪?when i was studying in the class.此句是过去式的.意思是我在上学时,在教室,并没有正在上课,是在课余时间.用这句对吗? 这句话有无错?错在哪? 800亿兆 等于多少?是不是等于 8000 0000 0000 0000 0000 有无错?如果错了 等于多少 请问英语听取信息题At noon写成In the noon有无错?我看上面那里写的In the morning.我就照他的写了.郁闷啊,如果错了1.5分有无0. 短文改错 每行一错,内有一行无错 大师!）短文改错每行一错,内有一行无错 大师!） swim is good for people 这句话 那个单词错了 还是无错 So Long As Keep Learning,Then When I Get Older,I Will Be Stronger And Stronger.请问这句英语有没错?如果错了,应该改成怎样? When I was in China I only went to the school?错在哪里了 这句英文有无错- I hope you can return to my side . 求长生不死无错版,有错字的就 别发了、纯粹浪费时间. when I was having supper,the postman arrived这句话有错吗,如果错了请改正. 语法有无错?Up to the present,the scientists have been c时态有这样的挖、错的话帮忙改一下 When I was young I often heard of stories from my mother.这句话有错吗?如果错了，该怎么改。 I came in when she was reading 为什么错了? How long have you been running this company?(你经营这家公司多久了)翻译有无错 she did her homework yesterday evening when i saw her.哪错了 I want to know when you will go to abroad.哪错了?为什么? i want to know when are you leaving for shanghai.这句话哪错了