



1. 句型
| If + 主詞 + had + 過去分詞,主詞 + | would could might ought to should |
+ have + 過去分詞 |
I helped Mom do the dishes after dinner.
晚餐後我幫老媽洗碗筷。
David looked so funny that I couldn’t help laughing.
大衛看起來好滑稽,我不禁笑了出來。
David looked so funny that I couldn’t help but laugh.
大衛看起來好滑稽,我不禁笑了出來。
Your advice was a great help.
你的建議非常有幫助。
Your advice was of great help.
你的建議非常有幫助。
