_______ a book in the library, enter a key word into the computer.

 There _______ a big cake and some flowers at the party.

—What does your mother ________?—She is of medium build with long straight hair.

－Won’t you like to come to Li lei’s birthday party?－I will if I ______

---- What do you think of haze(雾霾)？ ---- It ____ us we all must try to do something to stop the air pollution.