---What’s the low-carbon(低碳的) lifestyle like? ---Save energy, and produce carbon.
—Why not come and join us in the game? —__________, but I must meet Mr. Smith at his office now.
—Do you know Xidan Girl? —Of course. She played _____ guitar and sang song in the 2010 Spring Festival Gala.
I often watch TV,this evening I’m doing my homework .
Look! The man ________ under the tree .
Where your pen pals?