I have been more quiet than in the past.这句话的in the past 这样用对不对?

问题描述:

I have been more quiet than in the past.这句话的in the past 这样用对不对?

可以这样用的.也可以用before代替in the past .
即改为I have been more quiet than before.

对,但in the past前面省略了"I had",所以完整的句子是:
I have been more quiet than I hav in the past.
省略后更地道,更简略.