7. 過去進(jìn)行時
表示過去正在進(jìn)行的動作，經(jīng)常用在when, while, as引導(dǎo)的狀語從句中。
結(jié)構(gòu)：was/were+doing
When my husband was going into the dining room this morning, he dropped some coins on the floor.
While we were having dinner, my father was watching TV.
表示過去正在進(jìn)行的動作，經(jīng)常用在when, while, as引導(dǎo)的狀語從句中。
結(jié)構(gòu)：was/were+doing
When my husband was going into the dining room this morning, he dropped some coins on the floor.
While we were having dinner, my father was watching TV.