If you want to improve your English ____(rapid), you'd better listen to BBC English ____ is part of the BBC World Service. It broadcasts all kinds of programmes, such ____ difficult grammar ____(point), life in Britain, differences between written and ____(speak) English and so on. So far BBC English ____(become) a popular learning course. If you want to know some information about the programmes, you just need to write to BBC English ____(ask) for it. ____ , ____ is easy for you to find out the information and follow the programmes.

    In China there are English programmes like Follow Me on the radio. They are usually easy to receive and understand and they are very ____(use) to you.

下列关于生命起源的说法，正确的是（ ）

A          is a person going from one place to another in a public or private

vehicle (交通工具).

地球表面大部分是蔚蓝色的____，占地球表面积的____还多。