第1个回答 2008-09-08
前面的同志做得也还行,我主要在1. 2.5.做了修改,5里面的单词aieplane可能是笔误。
1.the speaker at the conference turned out to be daught of an old friend.
2. though having retired 5 years ago, he remains active in academics
3. if you are really finacially difficult, you can apply for a student loan.
4.the scientist had worked on the new material for 10 before he enentually made his own way.
5.major airplane manafacturers in the world are pushing the envelope to make airplanes travel faster and longer for bigger market.