________ not at school.

[　　]

________ not at school.

[　　]

He’s got a birthday cake____ his ____ birthday.

A．on ，thirteen                          B．for ,thirteen

C．on ,thirteenth                          D．in ,thirteen

―He’s never advised to achieve a balance between his job and hobbies, ________?

―_______. His parents and teachers often offer him advice to.

A．has he, Yes        B．is he, Yes          C．hasn’t he, No     D．isn’t he, No

----He’s never sung English songs before, __________he?

----_________. It’s his second time to sing in English.

A．has; Yes           B．is; Yes            C．has; No           D．is; No