Papermaking began in China and from here it _______ to North Africa and Europe.
In the near future, more advances in the robot technology___by scientists .
—It is so cold. Why not close the window? —Sorry. It . I will have it repaired.
The letters for the boss___________ on his desk but he didn’t read them until 3 days later.
They are living with their parents for the moment because their own house __.
Don't worry. The hard work that you do now ________ later in life.