大学英语预备阶段练习（一）（Unit 14） Word Building Directions: Fill in the blanks with the correct form of the words given in the brackets. 1. Thank you very much for your _ advice. I followed it and succeeded at last. (value)2. His business has _ rapidly since his brother came to help. (development)3. After a two-day discussion, we finally found a _ to the difficult problem. (solve)4. Prices _ high for quite a while .People began to complain about it.
