问题
选择题
_____ the earth to be flat, many feared that Columbus would fall off the edge of the earth. [ ]
A. Having believed
B. Believing
C. Believed
D. Being believed
答案
答案：B
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_____ the earth to be flat, many feared that Columbus would fall off the edge of the earth. [ ]
A. Having believed
B. Believing
C. Believed
D. Being believed
答案：B