Why not________your teacher for help when you can’t finish ________it by yourself?
All the children like the teachers ________ can understand them.
________ made kung fu popular in the west. He is my hero.
On the night of February 14th, 2011, all the Chinese _________ by Guo Mingyi, a very common worker who ________ more than 180 poor children since 1994.
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.