( ) Little Jack sometimes goes home foot. A. by B. at C. on
( ) I have two good pen friends. One is an American, _________is in England.
( ) There are so many people in the shop. You must _________ your things.
( ) —_________? — My bike is broken.
( ) Look! Lucy is ______ a new red dress. She is beautiful today.
( )一Is Miss Gao at school? —__________, I don’t know.