問題補(bǔ)充：
單選題
The waterfall can be seen _ __. Its sound may be heard __ two miles. It looks even more beautiful____.A.at a distance; in a distance of ; from a distanceB.from a distance; in the distance of; at a distanceC.in the distance; from a distance; at a distanceD.in the distance; at a distance of; from a distance
