[文法] 一題文法題

[antrina ()]

想請問以下這一題文法題:

2. Many companies across the country have molded the concepts _____

   describes into an integrated strategy for preventing stress.

   (A) and Wolf

   (B) that Wolf

   (C) what Wolf

   (D) so Wolf

   答案給的是(C)，為什麼(B)不行呢?

   謝謝大家!

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→ dunchee:答案給錯，是(B) that Wolf     http://ppt.cc/hLrx
→ antrina:原來如此!謝謝你!