A group of boys gathered around a tree. "What a tall tree!" they said to each other. "It would be exciting to climb to the top!"

    The group of boys then decided to play a game to see who could (climb) to the top of the tree first. Their (mother) were sitting not far away, looking on at them as they played.

    One of the climbers was(冠词)8-year-old boy named David. He was the (short) child in the group. Nobody thought he would win the competition.

    Then the game started. All of the boys tried ( they 1 best to climb as high as they could. (连词)they all made it halfway up the tree before David did, he reached the top of the tree first in the end.

    His mother was proud to see this. She asked him, "David, how did you manage to reach the top of the tree so (quick)?"

    "It was easy, "David said. "The other children ( keep) looking down as they climbed. When they realized how high they were, they got scared and were afraid of (fall) down. I, however, looked only up. When I saw how close I was, I just went higher and higher until I reached the lop."

    It is true in life that if we just keep going forward(介词)looking back, we are more likely to reach our goals and achieve success.