有過去完成式問題想問問

When Mary arrived home, my brother had broken the glass. ~ 錯

(when = after or as soon as something happens)
~ you should use simple past tense for the action "break".

1. 如要說明你的兄弟何時打破玻璃, the sentence could be rewritten as:

~ When Mary arrived home, my brother broke the glass.
~ My brother broke th glass as soon as Mary arrived home.

2. If you want to emphasize what was your brother doing when Mary arrived home, you use past continuous tense.

~ When Mary arrived home, my brother was playing baseball in the house.

3. Using Past Perfect tense to state one action happened before the other action in the past:

~ My brother had broken the glass before Mary arrived home.
~ Mary arrived home after my brother had broken the glass.

(past perfect for the first.)


After my brother had broken the glass, Mary arrived home.

Before Mary arrived home, my brother had broken the glass.

"When Mary arrived home, my brother had broken the glass."is correct