They________todothebestuntiltheir

发布时间：2020-07-09 14:03:32

They ________ to do the best until their teacher came.













A.began












B.wasn't begin











C.didn't begin











D.were beginning

网友回答

C解析解析：not... until直到……才；be going to do sth开始做……
以上问题属网友观点，不代表本站立场，仅供参考！