根據(jù)短文內(nèi)容，在每個空格處填寫一個適當?shù)脑~，使文章意思完整且符合邏輯。 （每空一詞）

treat play word water failed surprise angry repeated for but

Once upon a time，he was （1）

playing

playing

in the forest.When he called out，"Ho!Ho!"and they were repeated at once.He was very （2）

surprised

surprised

.George shouted，"Who are you？"The voice also said，"Who are you？"George shouted （3）

angrily

angrily

，"You are a silly boy!"And"silly boy"was answered back from the forest.He became very excited，and continued to shout angry words.And they were all （4）

repeated

repeated

.Upon this，he decided to search（5）

for

for

the bad boy.He thought the boy was hiding in the forest.But of course，he （6）

failed

failed

to find anyone.
    Filled with puzzlement （困惑），George ran home.He told his mother that there was a bad boy in the forest（7）

but

but

he couldn't find him.His mother said，"It was echo.Actually，you，yourself，were the 'bad boy'.What you heard was just your own （8）

words

words

.Your voice rebounded（回彈） from the forest，just as you have often seen your face reflected in the（9）

water

water

.Next time you go to the forest，you will know if you speak kind words，you will also hear kind words.
    In fact，echoes are like people.If we（10）

treat

treat

others kindly，we will be treated by them in the same way.