Chinese is used ______ the largest number of people in the world.
Jim isn’t from a poor family, yet he often comes to school wearing the same clothes every day ________the week.
- When was David born?- He was born______ June 12,1989..
Lucy lived in Beijing ______2008 to 2012.
The engineer was _______arrest _______murder.
It’s bad for our eyes to read books _______ the sun.