---I hear Sam has gone to Qingdao for a holiday.
---Oh, how nice! Do you know when he________?

—Is Kate coming to the party this evening?
—No, she _________ be at the party. She________ to the UK.

Children _______ sit in the front seat of a car. It’s too dangerous.

In Chongqing, you can often see many people dance outside together if it ______ in the evening.

—Where is your father?
--He ________ the World Cup in the living room.

Alice likes doing housework. She ________her room every afternoon.

After Steven sent some e-mails ,he______ surfing the Internet.

--- ____ you ever_____ the new Minyuan Stadium?  
--- No, I haven’t.

--Mike, can you tell us something about our new teacher?
-- Oh, sorry. I know nothing because I _____________ him before.

My uncle ________ a worker, but now he _______in an office.