Amy will study in an international language school for several weeks．（对画线部分提问）
________ ________will Amy study in all international language school？

—________have you been in Chongqing？
—For five years．

Miss Lin________a lot of work for the poor area since 2010．

（安徽）Rick has learned a lot about Chinese culture________he came to China．

—How old is Mary？
—________．We had a special party for her________birthday yesterday．
A．Twenty；twentyth
B．Twenty；twentieth
C．Twenties；twentieth