英語會話學習

以下句子的英文怎麼說?

1. 你書都白念了。
   You are trained for nothing.
2. 有得必有失 (凡事有利必有弊)
   There are two sides to every door.
3. 政府正在研擬新的教育方針
   The government is devising a new education policy.