第20题: [单项选择](A great many teachers) (firmly) believe English is one of the (poorest-taught) subjectsin high schools (at present). A. A great many teachers B. firmly C. poorest-taught D. at present 参考答案:C 答案解析:改为most poorly taught,在这里修饰过去分词taught的必须是副词,而不是形容词。例如:well educated,well done等。故将poor改为poorly。