has been mentioned above,continued chairman after he took a sip of coffee, the project must be carried out before spring flood es.
A. As;that
B. That;which
C. This;which
D. It;that
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(答案→)A. As;that
B. That;which
C. This;which
D. It;that
解析:“ has been mentioned above”是定语从句,而“ the project must be carried out before spring flood es.”是动词continued的宾语从句,宾语从句中句意和结构都完整,故选that,结合第一个空,得答案A。