My uncle _____ Beijing next week. He is having a meeting there.
The Nanjing Yangtze River Bridge is still very strong, ___________ it is almost 43 years old.
—__________ do I have to change the robot’s batteries? —Every two months.
Mr Chen __________ his mobile phone to the shop because it can’t work at all.
Computers have made a great difference _______ our everyday life.
After half a day’s hard work, we made our classroom look as _______ as new.