The girl devoted all her time she had _____ poor children.
The second Asian Youth Games will be____ in Nanjing in August, 2013.
Jack felt nervous when he found the physics problems ____ to work out.
Only 16 percent of China’s area ____ covered with forests, so ____of us should protect trees.
As a member of the Wild Animals Club, he ____ buys furs.
If nobody ____ the traffic rule, the Chinese style of crossing the road ____.