根据句意和汉语提示，填写恰当的短语完成下列句子
(1)____ (根据) the weather forecast, there will be rain in most parts of China.
(2) Yesterday I took Jenny’s dictionary home ____ (错误地).
(3) Boys and girls, be careful enough not to____ (落入) the lake.
(4) In our free time, I taught her Chinese and she taught me English. ____ (用这种方式), both of us learned a lot.
(5) — Why did you come home so late this afternoon?
— I met one of my old friends in the street ____ (意外地) and we had a long talk.