這個問題是錯誤的。過去進行時態的結構是was/were+doing。過去進行時既不用has也不用had。
如:He was watching TV this time yesterday. 昨天這個時候他正在看電視。
They were playing football in the playground when we saw them. 我們看見他們的時候他們正在操場上踢足球。
這個問題是錯誤的。過去進行時態的結構是was/were+doing。過去進行時既不用has也不用had。
如:He was watching TV this time yesterday. 昨天這個時候他正在看電視。
They were playing football in the playground when we saw them. 我們看見他們的時候他們正在操場上踢足球。