In the past, there seemed no reason to ban children from watching TV. In _______ times, however, there has been an increase in the amount of violence on TV.

单选题

During the past ten years there have been dramatic changes in the international situation.

答案解析

单选题

In the past 50 years, there _____ a great increase in the amount of research _____ on the human brain.

答案解析

单选题

Where in the past three years?

答案解析

单选题

In the past, there seemed no reason to ban children from watching TV. In _______ times, however, there has been an increase in the amount of violence on TV.

答案解析

单选题

Great changes_____ in Yangzhou in the past few years.

答案解析