她现在在上网吗 Did she now online ; She is now in the Internet

你在上网吗 You do in the Internet ; Do you surf

你在家上网吗 You do at home ; You are at home on the Internet

你喜欢在网上冲浪吗 Do you like surfing

现在有时间网上聊吗 There is now a time chatting on the Internet ; Now sometimes do online chat

需要我在网上找地址吗 I need to find addresses on the Internet

您想在商务中心上网吗 You want the business center on the Internet

在船上能上网吗 On board the vessel to the Internet ; You can access on board