has been 加過去式是什么時態(tài)
回答
愛揚(yáng)教育
2022-03-19
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例句：
The committee has been dissolved.
委員會被解散了。
Fighting has been ferocious.
戰(zhàn)斗一直很激烈。
擴(kuò)展資料
Only time will tell if the treatment has been successful.
只有時間才能證明這種療法是否成功。
The system has been in operation for six months.
這個系統(tǒng)已經(jīng)運(yùn)行六個月了。
The company has been investing in new plant and equipment.
這家公司一直在投資購置新機(jī)器和設(shè)備。