One of the most important questions they had to consider was ______ of public health.
Scientists have found evidence ________ global warming caused the world's first horses to become smaller nearly 50 million years ago.
Some place names have been changing over the years. For example, Jinling in ancient China refers to ________ is now called Nanjing.
________ we've set our mind on the goal, we must go through with the task.
All the soldiers were placed exactly ________ the local government wanted them for the control of the comeback of the flood.
Provide your doctor with a detailed medical history ________ he can give you accurate treatment.