【题目】To make extra-class education run on the right track, China is tightening _____ of after-school training institutions.
A. application B. regulation
C. adaptation D. cooperation
在线课程【答案】B
【解析】
考查名词。A. application申请；B. regulation规则；C. adaptation适应；D. cooperation合作。句意：为了让课外教育走上正轨，中国正在加强对课外培训机构的监管。故答案为B。