Theboytriedhardbuttherehasbeen__

发布时间：2020-07-26 23:08:06

The boy tried hard but there has been ________ in his work．A.little improvementB.a little improvementC.many improvementsD.few improvements

网友回答

B
以上问题属网友观点，不代表本站立场，仅供参考！