Question

He hated the war so much that he decided to leave the army _____.

1. A.
   for long
2. B.
   once in a while
3. C.
   for good
4. D.
   once upon a time

Answer 1

C
　 for good (=permanently)永久地:He says he's leaving the country for good. for long 长久地。按本题题意，用 for long 不妥。once upon a time 从前。once in a while 偶尔。