题目内容
________ people are concerned about now is the Shanghai World Expo, which ________ start on May 1st.
A. What; is due to B. Which; is going to
C. That; is to D. What; is about to
A
考查主语从句及将来时的表达法。第一空考查主语从句,what在从句中作主语;第二空be due to预定。句意:目前人们所关心的是上海世博会,世博会预定5月1日开始。

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