（3）用在條件或時間狀語從句中表示過去將來正在進行的動作She told me to wake him up if he was sleeping...

（一直在修，不涉及結果）4.一般過去時與過去進行時用法比較一般過去時表示在過去某個時間發生的動作或存在的狀態（強調一次性動作）...

過去不定時態的時空作用域如下圖所示：圖1過去不定時態的謂語形態為：was/were + to do其時間助動詞為“過去”，其狀態主動詞為“不定”，如圖1所示...

Let me kiss away the grey  bleak moments of the day...

________ animals can run very fast...

When you are your only competition in life，the only person you ever have to prove anything to is yourself...

It did exactly what all the other chickens did all his life...