I hear the Shanghai Expo is held May 1st Oct. 31st.A. between onB. from toC. on

问题补充：

I hear the Shanghai Expo is held May 1st Oct. 31st.

A. between, on

B. from, to

C. on, and

D. during ,to

答案：

A. between, on

(答案→)B. from, to

C. on, and

D. during ,to

解析：考查固定搭配。句意“我听说上海世博会从3月1日持续到10月31日。”between与and连用；during单独使用。from... to...“从.....到.....”。故选B。