-Can you_________ the math problem? -No, it’s too difficult! A. look out B. find out C. work out
Winter holidays will begin _____ January 17.
Good morning, class. Today ____ are going to learn a new unit, Unit 12.
—What did Sally say to Jack? —She asked Jack .
— Is Mr. Smith driving here? —I’m not sure. He ______ come by subway.
—Do you know when we can go back home? —Sorry, I don’t. Because of the heavy snow storm, highways have been blocked and flights have been __________.