21. Mr. Brown knows little Japanese, so he can’t understand the ________ on the bottle of the pills.

A. explanations              B. instructions  

C. descriptions        D. introductions

22. Aboriginal £¨ÍÁÖø¾ÓÃñ£©is a word ______ to describe the people living in a place from the earliest _______ times or before European arrived .

     A£®used ; knowing       B£®used ; known  

C£®using; known      D. using ; knowing