栏杆安装工程资质:He failed to reply to my question. 他没能回答我的问题。

He failed to reply to my question. 他没能回答我的问题。 As he didn't know the lesson at_____,Tom failed his English test. He wasn't able to do that.是什么意思? he didn't dare to draw a deep breath He failed to carry out some of the provision of the contract. He failed to carry out some of the provision of the contract I tried to persuade him not to smoke,but he wouldn't listen to me 急!急!急!!!是he had no reply 还是he made no reply还是别的 He usedn't to go there when he was young.可以表达成 Couldn’t complete connection to the server ?connection failed after 4 retri怎么解决