21．—Could you tell me how to get to the town hall, please?
— .Maybe you could ask the policeman over there．
A． A piece of cake B．That depends
C． I don't care D．I don’t know for sure
22．I have learned that it’s taking long time to become _person I want to be.
A． the; a B． a; the C． the; the D．不填; a
