双基限时练(一) module 1 section ⅰ 基 础 夯 实 ⅰ.单词拼写 1．i'd like to take this ________ (机会)to thank everyone for their hard work on the project. 答案 opportunity 2．there have been great ________ (进步)in medicine in the past 50 years. 答案 advances 3．his ________ (严肃的)look made me realize that something
