_____ of English is essential for those who apply for the post A good knowledge B a good knowledge C godd knowledges D the good knowledge
问题描述：
_____ of English is essential for those who apply for the post
A good knowledge B a good knowledge C godd knowledges D the good knowledge
答
答案为A。B错，knowledge是不可数名词，前面不能加冠词a。C错，应该是good,不是godd。D错，knowledge of的前面不加定冠词the,如楼上网友梦之纹章之解释。
答
解析：A knowledge of 固定词组表示某一领域的知识.故选B