You can't imagine what great fun my brother and I had _________ up and down the tall, shaky steps.
---Mike, Guess what? Our team won the basketball game yesterday. ---_________.
The Dragon Boat Festival, which is celebrated _______QuYuan, falls on the fifth day of the fifth lunar month.
_____time goes by, my grandfather’s memory seems to get worse and worse.
Mr. Li lent me a book last week, _____I have learned a lot about earthquakes.
--- Have you moved into the new office building? ---Not yet .It ______