2. Oops, I forgot. 啊！我忘記了。

And we do get so busy that we can't remember everything, but some things may not be well received when we say that. So, instead of saying you forgot, try, "I"m on it but I haven't got through to them yet'. It's like saying the glass is half full instead of half empty. They mean the same; one just sounds better.

當我們很忙的時候，我們不可能記得所有的事情，但是有些事情當我們說忘了的時候，老板們也許就會不高興。所以，你可以說，“我正在做，但是還沒有完成”而不是直接說你忘記了。這就像是說玻璃杯里的水是半滿著而不是半空著一樣。它們的意思是相同的，只是另一個聽起來更好。

來源:可可英語 http://www.ccdyzl.cn/kouyu/200910/85833.shtml