根据短文内容从方框中选择恰当的单词填空，使短文完整、通顺，有的需要变换形式

shop, have, because, I, on

    Today my uncle buys a computer for my birthday. It a black keyboard and a white mouse. I am very happy I can search for information about my homework the Internet. I can also listen to music, learn English and go on the computer. Do you want to be my friend? Please send emails to