Complete the following passage by filling in each blank with one word that best fits the context.
Now it is becoming more and more popular to chat over the Internet, because you can find it 小题1:______ expensive to do that than to make a long distance call. This makes Internet chatting小题2:______ attractive option if you live far away from family and friends, 小题3:____ you are on a budget.
You can also complete 小题4:______ tasks while chatting over the Internet. For example, you can read and reply to emails, finish typing a document, or have a conversation 小题5:_____ someone who is in the room. This can be an advantage 小题6:_____ you are busy and don’t have much time for personal chatting. This can also be a disadvantage because you aren’t giving the other person or task your full attention.
Because you can do kinds of tasks 小题7:______ chatting on the Internet, it can become easy to lose track of time. You can end up chatting longer than you intended to, 小题8:_____ can make it difficult to complete other tasks.
小题1:less
小题2:an
小题3:or
小题4:other
小题5:with
小题6:when/if
小题7:while
小题8:which
题目分析：如今通过网络聊天是越来越受欢迎的事情。对于远离家人的朋友的人来说，网上聊天要比打长途电话省钱；此外，在聊天的同时人们可以做很多事情，比如可以收发邮件、可以和房间里的其他人谈话。但是如果没有节制的话，长时间聊天也可能会耽误了人们其他任务的完成。
小题1:考查上下文理解判断能力。根据than判断用比较级，而由常识可知通过网络进行交流要比打长途电话省钱，所以此空填less。
小题2:考查冠词用法。Option是可数名词，而且attractive是以元音音素开头所以此空填an。
小题3:考查连词用法。根据句意可知前后两句是提出两种情况，所以填or 。
小题4:考查理解判断能力。上文讲述了可以通过网络进行沟通，而下文讲述可以发邮件，打字等，这些都是能通过网络做的事情，由此推断此空填other。
小题5:考查介词用法。根据语境可知此处是指与别人谈话，所以用with。
小题6:考查连词用法。由结构判断两个句子要用连词，再根据句意可知此空填when/if。
小题7:考查连词用法。由语境可知此处是指在网上聊天的同时可以做很多事情，所以填while。
小题8:考查定语从句。根据结构可知后面是非限制性定语从句，从句缺少主语，而且指代前面句子内容，所以判断填which。