be wiling to do sth的同义词

be wiling to do sth的同义词 be to do sth和will do sth的区别 be about to do sth的用法 be comfortable to do sth的用法 be willing to do sth 与be ready to do sth的区别 be able to do sth be able to do sth 的同义词是什么? will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的区别will do sth, be about to do sth, be to do sth, be going to do sth 和be doing 的详细用法及它们之间的区别 be sure to do sth. be pleased to do sth be able to do sth be going to do sth be let to do sth? be sad to do sth. be made to do sth be obliged to do sth. be used to do sth. Be used to do sth Be used to doing sth 后者的to为何做介词? be adle to do sth与can do sth的区别请问be adle to do sth与can do sth有什么区别?