问题
选择题
Mr．Barret doesn’t think that all bad language should be allowed．In his opinion, there are _____ that should be kept up．
A．degrees
B．levels
C．limits
D．standards
答案
答案：D
本题考查名词辨析。从上下文的意思分析，此处用 standards，表示“应该遵循的标准” 。句意：以他看来，这是他应该遵循的标准。答案选D。