1.Itiswidelybelievedthat...
2.Thereisnodenyingthat...
3.Frommypointofview,...
4.Itgoeswithoutsayingthat...
5.Oneofthemostsignificantreasonsisthat...
6.Itiswell-knownthat...
7.Itisuniversallyacknowledgedthat...
8.Itisclearthat...
9.Itisessentialthat...
10.Itisworthpointingoutthat...
11.Itisimportanttonotethat...
12.Itiscommonlybelievedthat...
13.Itisacommonmisconceptionthat...
14.Itisimportanttobearinmindthat...
15.Itiscrucialtorememberthat...