What do we mean 1____   a perfect English pronunciation? In one sense there are as many different kinds of English as there are speakers of it.2____  two speakers speak in exactly the same way. We can always hear differences 3____  them, and the pronunciation of English varies a great deal in different geographical 4____  . How do we decide what sort of English to use 5____   a model? This is not a question that can be 6____ in the same way for all foreign learners of English. When you live in a part of the world like India or West Africa,7____ there is a long 8 ____  of speaking English 9____ general communication purposes, you should 10____to acquire a good variety of the pronunciation of this area. It would be a fashion in these circumstances to use as a model BBC English or 11____of the sort.12____ the other hand, if you live in a country  13____there is no traditional use of English, you must take as your model some fore of native English pronunciation. It does not 14____very much which form you choose. The most 15____ .way is to take as your model the sort of English you can hear most often.

1. A. with B. for C. by D. in