TO BE ABLE TO QUALIFY AS AN INTERPRETER, MANY YEARS OF INTENSIVE L...

40. To be able to qualify as an interpreter, many years of intensive language study are required for

non-native speakers. By the end of this year, Chen _English for three years, but he will

still need more training and experience before he masters the language.

A. Will be studying B. has studied C. will have been studying

D. has been studying