has加過去分詞是什麼時態

The company has a long tradition of fine design.

這家公司的'優秀設計歷史悠久。

The country has a poor record on human rights.

這個國家人權記錄不佳。

The information has been placed in the public domain.

這資料不受版權保護。

He has carried out extensive research into renewable energy sources.

他已經對再生能源進行了廣泛研究。

The Internet has become part of everyday life.

互聯網已成爲日常生活的一部分。

He has made a good recovery but still tires easily.

他已康復得不錯，但仍然容易感到疲勞。