Where are his pens— ________on the desk.

请在下面一段文字的横线处填入适当的虚词，使整段文字语意连贯，逻辑严密，层次分明。幸福是什么幸福就是自己觉得幸福。 这是一句人人皆知的大白话。 我却知道，有不少人， 很多人并非为自己的感觉，而是为了他人的观瞻而去构建自己的人生与生活。 窥察别人的生活与家庭，便成为我们生活的另一部分。

I’m sorry I can’t go to the film with you because I have a lot of things to _________

Congratulations! Among the best pictures in the competition, I found .When did you draw it—During the trip to the Purple Mountain in May, 2014.

is known to all is that the Diaoyu Islands have belonged to China since ancient times.