Mid Autumn Day of this year falls on Saturday.
It was with great joy _____ he received the news ____ his lost son would soon return home.
The boy was sitting _____ his mother, _____ his back _____ the door.
We can never forget the days _______ the two astronauts in spaceship worked together and the days ________ we spent together.
_____ teachers are looked down upon.
This is the second time Nie Haisheng ________ to be the astronaut who took the glorious task.