—Do you know _____ ? I'm going to see him. —Sorry, I don't know.
We will go for a picnic if it_____ this weekend.
-- I feel a bit hungry now. -- Why not_____ for dinner with us?
You can ’t get in. The exam _____for over 30 minutes.
It takes my mother much time _________ every day.
There ______ a funny cartoon on CCTV 6 this evening.