Complete the passage with the proper words in the box. Each word can only be used once. One word is not needed.

A. understanding     B. industry       C. range      D. improve     E. adopted F. pronounce          G. flooding       H. valued     I. operating       J. tend

 
The speeches of US President Barack Obama have become the favorite way for Japanese to study the English language. Japanese publishers have been ___小题1:___ the market with over a dozen language-learning titles. Companies are trying to enter a foreign-language teaching ___小题2:____ which was ____小题3:___ at $8.6 billion in 2008 by some research institutes.
Why is there such a huge Japanese market for recordings and books of Obama's speeches? Japanese say that listening to Obama speak is a good way to ____小题4:__ their English-speaking skills.  
Most Japanese, including those studying English, would have difficulty __小题5:_ a speech given by a native English speaker. But “Obama's English is easy to understand because he can ____小题6:___ words clearly and speaks at a relatively slow speed,” said Professor Tadaharu Nikaido, a communication specialist. “Movies ____小题7:__ to be the most difficult for Japanese, especially when actors mumble (咕哝) their words.” Obama sets his ____小题8:___ of vocabulary wide enough to accommodate (迎合) all levels of English speakers, Nikaido added, and at the lower end, it sometimes comes within the range of non-native speakers' comprehension.
The Obama speech phenomenon has given way to more books and magazines that focus on how Obama's communication skills might be ___小题9:___ in Japan for business and political purposes. At least half a dozen books and magazine covers of this kind have appeared in the past several months in Japan.