A.How many native speakers it had in Shakespeare's time. B.The number of people with an adequate working knowledge of it. C.The situations where a common language is needed. D.The purposes for people to learn a second, language.
A.How B. B.The C. C.The D. D.The E.
【参考答案】
B 解析:Accordingtothepassage,whatishardtoestimateaboutEnglish?