单项选择题
Summer in （） south of France are dry and sunny.
A. the B. a C. an D. /
单项选择题 The world's population is becoming （）
单项选择题 He said the pain had grown worse on their（）to the hospital.
单项选择题 The changes in the city will cost us a lot of money, （） they will save us money in the future.
