have a seat:
http://www.wakaru-english.info/take-a-seat%E3%81%A8have-a-seat%E3%81%AE%E9%81%95%E3%81%84.html
some tea
http://ejje.weblio.jp/content/Please+have+some+tea.
more tea
https://american-phrases.blogspot.jp/2012/10/do-have-some-more.html
shall we
https://hapaeikaiwa.com/2014/09/24/%E3%82%A2%E3%83%A1%E3%83%AA%E3%82%AB%E4%BA%BA%E3%81%AF%E3%80%8Cshall-i-we%E3%80%9C%E3%80%8D%E3%81%A8%E3%81%BB%E3%81%A8%E3%82%93%E3%81%A9%E8%A8%80%E3%82%8F%E3%81%AA%E3%81%84%EF%BC%9F/
careful
http://amiranet.jp/esl/in-dangerous-situation/
