Therehasbeena__________lackofcommunicationbetweentheunionandthem
2023-11-03（中学）英语学科知识与教学能力
Therehasbeena__________lackofcommunicationbetweentheunionandthemanagement.
A.regretful
B.regrettable
C.regretting
D.regretted
正确答案是B
