Who are you going to havethis letter for you?—-My secretary

You look so weak. If you want to keep___________, you need __________more.

You haven’t watched the music show called The Song of China, have you–________________. I like its original songs, especially Huo Jun’s Juan Zhu lian(卷珠帘）.

A growing number of people are suffering from depression especially in cities, so we need to help them to recognize the early of depression.

Modern forms of transportation and communication have done much to ______ the isolation（隔离）of life in Alaska.