1 They said that English is a means of international communication.
2 They wanted to know what the word "prevent" ment. And they were answered that it means to stop something from happening or to stop doing something.
3 They wanted to know what the author ment saying that conflict was a natural thing in life.
4 He/she asked if he/she could use their dictionary and had a positive reply.
5 They said that the sign meant nothing to me.
6 He/she said that he/she had never meant that they should come alone, adding that he/she could have taken anyone with him/her.