①On/In/During ... , sb. did/held/took part in ...
②Firstly/In the morning ... , sb. went to ...
③It's reported that .../As is reported .../According to the report ...
④It's said that ...
⑤Sb. hoped/thought that ...
⑥According to the information from ...
⑦It is said .../Witnesses said .../Experts said ...
⑧They said it was ... that they would remember it forever.
⑨From ..., we can learn a lot.
⑩In a word, it is necessary for us to ...
