【正文】
\ 。\ C.\。\ warmth of ___ sweater will of course be determined by the sort of ___wool used. 。the C.\。a money was in __ use in China when Marco Polo visited the country in__ thirteenth century. 。the 。the you seen __ pen?I left it here this morning. __Is it __black one?I think I saw it somewhere. 。an 。the people agree that __ knowledge of English is a must in ___ international trade today. 。\ 。the ’t it ___ wonderful world if all nations lived in __ peace with one another? 。\ 。the is __ newer to __ chemistry but she has already made some important discoveries. 。\ 。the people are still in __ habit of writing silly things