单项选择题
Having been working in logistics for 3 years， he is more than（） he used to be.
A.proud B.brave C.confident
单项选择题 Thepriceofcommodities（）onmanyfactorslikequality，demand，supply，etc.
单项选择题 Youhavemadeyourclients（）toolongintheoffice.
单项选择题 Productsaregradedaccordingtosizeand（）.
