The girl looked at me with a _______expression. Maybe the problem was quite _________.

The secret of happiness is to treasure the things you have now. But someone won’t know it _______ they lost what they own.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ） 在学校的日子里，我没有什么特别的感觉， ， ， ， ， 。我默默地注视着学校红色的大门，由衷地感谢她带给我的一切。①很多时候你可能觉得今天跟昨天没什么不同②这时你可能非常留恋过去的日子③突然发现它写得真好④你回过头来，其实一切都在改变⑤不禁哼出一句“月亮的脸偷偷地在改变”⑥现在要离开这个学习了几年的学校

She was scared theyard because she was scared bythe big dog at the gate.

______ you can chat with yourfriends, makes communication easy.