Why did you choose to attend ABC university?
你为什么选择就读ABC大学?
I choose ABC university because I believed it has the best engineering department in the country.
我选择ABC大学的原因是,我认为该校的工程系是全国最好的。
I'm happy with my decision.
我非常满意自己的决定。
I received the best education possible and I'm confident that I have the konwledge and skill so that I can readily contribute to your engineering department.
我接受了最好的教育,并对自己拥有的知识和技能充满自信,随时可以为贵公司工程部做出贡献。