be halfway to doing完成了事情的一部分 这个句式成立吗

be halfway to doing完成了事情的一部分 这个句式成立吗 be close to doing. be reduced to doing happen to be doing pretend to be doing to be doing 和 doing的区别 be important to doing 对吗 Be conductive to doing 是什么意思? to be done=doing? be uesd to doing 是什么意思 用 be doing 和be doing to do 造句 三个 英语惯用语解释To meet sb.halfway be used to doing sth =used to doing sth be forget to be forget to sbforget to doforget doing It won't be long before this theory___wrongproves to be is proved to be will proved to be will be proved to beHe is not ___to give up halfway even if he gets defeatedpossible probable proper likely选什么为什么 请问want doing sth =want to be doing吗 be allowed 后跟什么 to doing ,doing ,do be said to be doing和be said to have been doing的区别