Question 7
A、The Europeans are nice.
B、The sea is comparatively small.
C、The weather is good.
D、The rescuers are well-trained.
Q: Why do authorities believe there still is a chance to find people?
详解：新闻中提到，官员们相信还有一线希望能够搜救到遇难者，因此此时水温尚可而且天气状况良好，因此答案为C。