1．He cut down on coffee and cigarettes, and ate a balanced ________ (日常饮食).
答案：diet
2．It is the ________ (风俗) in that country for women to marry young.
答案：custom
3．She laid down her knife and fork and pushed her ________ (盘子) away.
答案：plate
4．Users can ________ (下载) their material to a desktop PC.
答案：download
5．The ________ (功能) of the heart is to pump blood through the body.
答案：function
6．The virus seems to have a________ his throat.
答案：attacked
