Complete the dialogue with everyone, no one, anyone, someone

Complete the dialogue with everyone, no one, anyone, someone. 
A. ____knows Marco. He's very popular. 
B. When i arrived at this school last year. I didn't know___. Marco was the first person i spoke to. 
A. ____likes their first day at school.
B.It was terrible. I really needed__to talk to and i found Marco. 
Complete using the second conditional
1.I___(go) if I___(know)the address. 
2.If they___(have) more money, they... (buy) the house. 
3If she___(get) a job, she___(be) happier. 
4We___(help) them if they___(need) it. 
5.He(learn) more English if he___(go) to England
6.If they___(speak) more clearly, we__(understand)them.