---Hi, Jane. Are you free at six this evening? I was wondering if you could come with me to see the movie “X-men”.

---I’m sorry but I________it already. Besides, I________my mother do the laundry.

A．had seen; would be helping

B．saw; will help

C．have seen; would help

D．have seen; will be helping

Smile to the world, ________ the world will smile back to you.

A．nor

B．but

C．or

D．and