have的过去式形式
例句：
Times have changed and so have I.
时代变了，我也变了。
Profits have stagnated.
利润原地踏步。
Have you been able to have any kind of contact?
你取得任何联系了吗?
例句：
Times have changed and so have I.
时代变了，我也变了。
Profits have stagnated.
利润原地踏步。
Have you been able to have any kind of contact?
你取得任何联系了吗?
