Now we can send a mail to someone_______a computer and the Internet.用by 还是with?
问题描述：
Now we can send a mail to someone_______a computer and the Internet.用by 还是with?
答
选by,因为by是通过的意思,with是用的意思,是通过电脑和网络发送,而不是直接用,例如I write homework with pen.