单项选择题
A. looked for B. longed for C. waited for D. went for
A. the cost is lowered B. people need it to reduce damages C. meteorologists can make full use of the new technologies D. conventional weather forecasts are got rid of
A. Educating their students about the importance of sleep. B. Monitoring their students’ late-night activities. C. Delaying school start times. D. Setting strict rules.