Many early Europeans, ________ the earth to be flat, feared that Columbus would fall off the edge of the earth.

Many early Europeans, ________ the earth to be flat, feared that Columbus would fall off the edge of the earth.

1. A.
   believing
2. B.
   having believed
3. C.
   believed
4. D.
   to believe

Many early Europeans, __________ the earth to be flat, feared that Columbus would fall off the edge of the earth.

A. believing         B. having believed      C. believed          D. to believe

Many early Europeans, ________ the earth to be flat, feared that Columbus would fall off the edge of the earth.