looking back on it, i think i shouldn't have given up the contest so easily回過頭來看，我想我不應該如此輕易的放棄那次比賽。
had i taken a taxi, i wouldn't have been late如果我打的去的話就不會遲到了。
even if you take the exam again, you won't pass it就算再考一次你也通不過。
even if you had given him much more money, he might not have paid off the debt.就算你給了他更多的錢，他也還不清債務。
what would you have done if you hadn't gone out for a picnic yesterday?如果你昨天沒有出去野餐的話。你會幹什麼？
i wish i had told him the truth我真希望我把真相告訴了他。
i wish you hadn't cheated me我希望你沒有欺騙我。
if it had been fine, we would have gone to the park如果天氣好的話，我們就去公園了。
would he have seen you if you hadn't waved to him? 如果你沒有朝他揮手，他能看見你嗎？
you should have studied much harder你本應該更努力的學習。
i had thought about arguing with the teacher about that, but i didn't have enough courage我本想和老師爭論那個問題，但我沒有足夠的勇氣。
i had thought about living with my grandparents when my parents went abroad last year當我的父母去年出國的時候，我本想和我的祖父母住在一起。
7、expressing different opinions 表達不同的觀點
he is a very creative student他是個很有創造力的學生。
what you have said about this is very interesting你說的很有意思。
i cannot agree with you on this point在這一點上，我不能同意你的意見。
you've got the point你抓住了問題的實質。
that's the point這正是問題的關鍵。
the whole class is in a heated discussion全班同學正在熱烈討論。
let's just run through the arguments for and against我們來看一下贊成和反對的理由。
please sum up what you said just now請把你剛才說的總結一下。