Shopping on the net is more and more popular. Taobo is Asia's largest retail (零售的) network platform, ______ people can buy and sell many kinds of things.
the students came from different countries, they got along quite well in the summer camp.
—Where is Peter? I can't find him anywhere. —He went to the library after breakfast and ________ his essay there ever since.
-I wonderMary has kept her figure after all these years. -By working out every day.
________more about Chinese culture, Jack has decided to take Chinese folk music as an elective course.
—Sorry, Mum! I failed the job interview again. —Oh, it's too bad. You________ have made full preparations.