你想向朋友介绍照片上你的妈妈时，应该说：(    )

A．This is our mum.

B．This is my mum.

选出句子中错误的一项，并在横线上改正
【小题1】Would you show me how play this game on the computer?（______）__________
A B     C
【小题2】Can I borrow you ping—pong bat? （______）__________
A B C
【小题3】Would you please turn onthe radio? Grandma is sleeping. （______）__________
A B C
【小题4】Would you likeglass of orange juice? （______）__________
A B C
【小题5】Will you do me favour, please? （______）__________
A   B    C

Who is ____principal? (    )

A．my

B．you

C．your

___ name is Bob.  (   )

A．His

B．Her

C．He

What's__________ favourite season ? (   )

A．her

B．she

C．you