A:Hi,Bob.
B:Hi,Zhen.--1----aftertheentranceexams?
A:I'mgoingtovisitShanghai.
B:----2----
A:I'mgoingtherebyplanebecauseShanghaiisvearfarfromhere.
B:Isee.Bytheway,------3----?
A:Bymyself.Myparentsarevearbusyandtheycan'tgowithme.
Also,it'llbeagreatexperienceformeIthink.
B:---4---.Haveagoodtrip.
A:thanks.