单选题
10.
______ 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
【正确答案】
B
【答案解析】
believing...短语做原因状语,因其与主语谓语动词fear不存在时间先后,故不用完成时。
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