英语翻译1.住在楼下的那位男士是一名飞行员 2.那个正在的信件的女孩是他的秘书 3.我们去年种的那些树现在已经开花了

The man who lives in the downstairs is a pilot.
That girl who is writing letters is his secretary.
Those trees which we grew last year have now flowers .