24. —May I go and play with Dick this afternoon, Mum?—No, you can’t go out _______ your work is being done.
My uncle lives ____ 105 Huanghe Street. His room is ____ the fifth floor.
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.
We left Xi' an _.___ a very hot summer afternoon.