were、was 是 be 動(dòng)詞的過去時(shí)，后加了doing 成為過去進(jìn)行時(shí)。
例句：
Vendors were doing a brisk trade in souvenirs.
小販們的紀(jì)念品生意很興隆。
They were doing 70 miles an hour.
他們每小時(shí)達(dá)到70英里。">

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weredoing是什么時(shí)態(tài)

回答
瑞文問答

2021-08-17

過去進(jìn)行時(shí)。
were、was 是 be 動(dòng)詞的過去時(shí)，后加了doing 成為過去進(jìn)行時(shí)。
例句：
Vendors were doing a brisk trade in souvenirs.
小販們的紀(jì)念品生意很興隆。
They were doing 70 miles an hour.
他們每小時(shí)達(dá)到70英里。

擴(kuò)展資料

　　He said the protesters were doing a disservice to the nation.

　　他表示，抗議者們的行為正對(duì)國(guó)家造成危害。

　　He should have been aware of what his junior officers were doing.

　　他本該意識(shí)到自己部下在做什么。

　　They were doing just fine.

　　他們做得很好。