I still remember how many years was that I quarrelled with her for the first time.A. when

问题补充：

I still remember how many years was that I quarrelled with her for the first time.

A. when

B. this

C. that

D. it

答案：

A. when

B. this

C. that

(答案→)D. it

解析： remember后的部分是宾语从句，从句中含有有一个强调句型，被强调的部分为 how many years，所以用it。