________ my parents ________ my brother have been to Canada.

[　　]

Would you like to stay here for ________?

[　　]

-- Who is playing the piano?

-- Li Fang. That sounds ________.

[　　]

A rich man ________ worry about his next meal.

[　　]

I like surfing very much. It's ________ great fun.

[　　]

She has ________ been to Tibet, has she?

[　　]

-- Would you like ________ rice?

-- Yes, please.

[　　]

Your father is sleeping. You'd better ________.

[　　]

Neither he nor I ________ going to the party.

[　　]

My uncle has never been to a foreign country, ________?

[　　]