请问这个句子对吗?The terrible accident resulted from his careless.为什么不是carelessness?

请问When to hold the exam这个句子对吗 I not only play the guitar,I sing as well这个句子对吗?请问, 在英语书上看到这个句子I hope they win the match.请问这种形式对吗 请问这个句子对吗?The terrible accident resulted from his careless.为什么不是carelessness? 请问这个句子对吗?He drew a cat which sleeped on the table the love is beautiful这个句子对吗? i like the school这个句子对吗 The running boy won the first prize 这个句子对吗. sth.I like it very much这个句子对吗请问“the seal we will deliver to you as soon as possible .”这个句子正确吗? who was the book written by、这个句子对吗 There are some books on the desk这个句子对吗 they can hear over the radio这个句子对吗 I hope I can pass the exam 这个句子对吗? what is the matter with your bike 这个句子对吗 The baby is sleeping,please keep quieting这个句子对吗 There is nothing water in the bottle.这个句子对吗? the tree are our friends 这个句子写的对吗 These clothes are the children's.这个句子对吗?