—How often does the boy go to see his granny?— .
—Miss Li, must we hand in our homework right now?—No, you ____.You can hand it in tomorrow.
Your computer doesn’t work now, is there ________ with it?
The Smiths came to Shanghai in 2008,they ____ there for three years since then.
It’s raining heavily outside. Why don’t you _______ your raincoat?
Last year, I visited a chemical factory in Baise, there are about _____ workers in it.