英语翻译allow sb.to do sth.ask sb.to do sth.be busy doing sth.be

英语翻译allow sb.to do sth.ask sb.to do sth.be busy doing sth.be ask sb to do sth be afraid of doing be busy doing be late fo ask sb to do sth和ask sb doing sth ask sb do sth 、ask sb doing sth还是ask sb to do sth 一个英语的问题.就是allow to do .allow doing .allow sb to do sth.sb be 谁能用sb be free to do sth sb be busy with sth sb b 用be able to do be afraid of sth allow sb to do ask to do 用这些 为什么Allow sb to do sth,Ask sb to do sth就有to,而Let sb do sth ,H 用allow sb to do sth 和be allowed to do sth造句 各三句 be allowed to do sth和allow sb to do sth有什么区别?怎么运用? ask sb to do sth. ask sb to do sth