根据下列各句句意及所给单词的首字母或汉语提示，用单词的恰当形式填空。

The 【小题1】 (话题) of this article is social networking.

Mark never stops socialising with his friends online. He is 【小题2】 (持续不断地) posting updates on social media and receiving messages and updates from the people he associates with online. His sister spent all her time c【小题3】 that she needed to charge her phone. When it was charged, she just spent hours reading about her favourite popstar. They can’t drop their phones, because they are afraid to miss all the important 【小题4】 (约会), invitations and news updates.

But in reality, phones don’t bring people closer and people always feel 【小题5】 (沮丧的), dissatisfied and alone. Therefore, with cellphones, people are physically close, but mentally far away.