1) a 8) a= false / b = false / c = true / d = false
2) d 9) a= false/ b = false/ c= true/ d= true / e= true
3) b 10) a= Hi, am I speaking to John?
4) c b= Hi, it's Mark here from EaysPC.
5) c & d c= I'll have to check that with him
6) a & B d= Yeah, that's fine.
7) c e= Thanks for getting back to me so fast
f= Cheers, mate. Bye!