I’m going to Beijing the National Holiday.A. in B. on C. at
( )— What ________ he do? — He ________ pears on the farm.
() Look! Lucy is ________ a new red dress. She is beautiful today.
()—Whose dresses are these? —They’re the__________.
() —When is your birthday? —It’s__________
()—I usually go there by train. —Why not__________ by boat for a change?