I shall never forget those days _______ I lived in the army with the soldiers, _______ has a great effect on my life.

1. A.
   that ; which
2. B.
   when ; which
3. C.
   when ; that
4. D.
   which ; that

I shall never forget those days _______ I lived in the army with the soldiers, _______ has
a great effect on my life.

 I shall never forget those days _______ I lived in the army with the soldiers, _______ has

a great effect on my life.

I shall never forget those days ________ I lived in the army with the soldiers, ________ has a great effect on my life.

[　　]

（2010·北京市首师大附属育新学校中学部高三10月月考）      20. I shall never forget those days ______ I lived in the army with the soldiers, ______ has a great effort on my life.

A. that, which       B. when, which     

C. when, that       D. which, that