---Your head teacher has set up a Wechat group.Could you tell____?
---It is more convenient to communicate with our parents.
A.when it was set up B.why did he set it up
C.what it is used for D.how did he set it up
---Your head teacher has set up a Wechat group.Could you tell____?
---It is more convenient to communicate with our parents.
A.when it was set up B.why did he set it up
C.what it is used for D.how did he set it up
C