Do you know how many colors_________in the rainbow?
We were in Qingdao last week and ____ great fun there.
—_____ did Mr Li finish the work last night? —At about eleven, I think.
--_____ you call back tomorrow? --Of course I can.
Our teacher often tells us ____ the windows before we leave.
There ____ some meat in the fridge, so you don’t need to buy any.