You will find what great benefit the computer you own can be________each time you use it to help you work.[ ]

Rivera Street is dark ________ the light from 14yearold Lona Zhao’s upstairs bedroom.[ ]

To test which food was better for a long space journey, the astronauts in Shenzhou VII had as many as 50 dishes ____[ ]

Nanjing, ________ old capital of the six dynasties, isbecoming ________ more beautiful city for the coming 2014 Youth Olympic Games.

–When were the soldiers sent to the earthquake-stricken area — _______ the earthquake broke out.