One day, some workers were mending the road. They had dug a big hole in the road. As they could not finish their work, they had put up notice boards on both sides of the hole before they (1) ____. On the boards they wrote the word DANGER in order to warn people not to drop into the hole.

Some time (2) ____, a blind man was walking along the road. He was just walking in the direction of the hole. As he could not see the notice, he was walking nearer and nearer to the hole. He was very close to it now. Just at that moment, a boy saw the man and (3) ____ up to him. "Stop!" the boy shouted, "Don't go any farther, or you'll fall (4) ____ the hole." After he heard this, the blind man stopped (5) ____. Then the boy took the man by the arm and led him safely around the hole. "Thanks a lot," said the man, "You're really a nice boy."

A.later

B.ran

C.at once

D.left

E.into_______