Tom and Becky in the cave Tom and Becky walked into the cave.They held their candles high and saw names and dates which were written on the walls（A）        other people.Suddenly they were in a part of the cave without any writing on the walls.They used candle smoke to write their own names on the rock.
    （B）        then walked on.Soon they came to a little stream of water.The cave wall looked like a frozen waterfall.Tom went behind the stone waterfall and found an opening in the rock.They（C）started to walk down into the earth.They went deeper and deeper into the cave.Tom and Becky made many candle smoke（D）marks on the walls to show the way back.It was exciting.（E）他们很快发现自己在一个巨大的空间里。It was full of bats.There were thousands of jye.aim.The light from their candles woke up the bats，and they flew at the candle flames.（F）Tom knew this was dangerous，so he took Becky's hand to hurry her away，but one of the bats followed and put out Becky's candle with its wings.The bats followed them for a long time，but Tom and Becky ran into every new passage that they came to，and at last they got away from the bats.

（1）在文中（A）和（B）的空白处填入适当的单词：

by

by

；

They

They

（2）写出文中画线部分（C）和（D）的同义词或近义词：

began

began

；

signs

signs

（3）将文中画线部分（E）译成英语：

They soon found themselves in a huge space.

They soon found themselves in a huge space.

（4）将文中画线部分（F）改写为：
Tom knew this was

so

so

dangerous

that

that

he took Becky's hand to hurry her away.
（5）从文中找出两个形容词来描述山洞经历：

exciting

exciting

；

dangerous

dangerous