Whose is the printer?—It belongs to________．

Do you spend a lot of time____ computer?—No, but I spend much time_____ doing my homework.[ ]

“Three” is three times _________ “one” and twice _________ “one”.

_______ you ________ Huangshi since 10 years ago?

Last year my old college friend Melissa _________ her family business, a company supplying metal boxes to other factories.