1.Haven't I told you that don't like suger in coffee Yes,but I less than I usually doA was putting B put C will put D had put

1.Haven't I told you that don't like suger in coffee
Yes,but I less than I usually do
A was putting B put C will put D had put

B
I put less than I usually do.put 是put的动词过去式 (put put put) 均不变 put 和do 前后对应 说明 你只是比以前少放了一点
was putting 表示强调当时的一种动作 如果接时间短语 则用一般用过去进行时态

i have no idea of what you are talking about