—____ do you clean your room?—Every two days.
Since nuclear(核) pollution broke out in Japan, in March,2011,we are all _____ of it very much.
—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?