As its name __________, the Volunteer Farm relies on volunteers to weed, plant and harvest.
My uncle lives ____ 105 Huanghe Street. His room is ____ the fifth floor.
Mr Wang went to Nanjing ____ October,1998 and came back home ____ the morning of Nov.5.
My father was disappointed ____ the news.
His teacher was angry ____ him ____ his being late.
She felt disappointed when she found out they had gone swimming____ her.