He began to take political science ________ only when he left school.(2013·湖北)
----Have you seen _____ pen? I left it here this morning. ----Is it ____ black one? I think I saw it somewhere.
-- Would you help sweep the floor? -- _____ I’d rather water the flowers.
-- Come on, please give me some ideas about the project. -- sorry, with so much work _____ my mind, I almost break down.
After the new technique was introduced, the factory produced _____ cars in 2010 as the year before.
_____ of her skirt is different _____ that of mine.