The world is f_ with many interesting sounds.We make sounds by making things m_ tois called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are diffe

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The world is f_ with many interesting sounds.We make sounds by making things m_ tois called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are diffe

The world is f_ with many interesting sounds.We make sounds by making things m_ tois called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are diffe
The world is f_ with many interesting sounds.We make sounds by making things m_ to
is called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are different k_ of sounds.Some sounds are soft,some sounds are loud.Soft sounds are made by w_ vibrations,loud sounds are made by strong vibrations.Low sounds are made by slow vibrations and h_ sounds are made by fast vibrations.首字母填空

The world is f_ with many interesting sounds.We make sounds by making things m_ tois called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are diffe
1 filled (be filled with)
2 move
3 kinds
4 weak
5 high

what is right with the world? Today is the f_ day of the new term The world is f_ with many interesting sounds.We make sounds by making things m_ tois called vibration.It means moving up and down or forwards and backwards very fast.These vibrations cause the air to vibrate.This makes sound waves.And there are diffe She is in f_?__of the house.front 1.Christmas is an important f_ in the USA. we all know the f_ that she is a blind the Big Ben is f_ place ro visit in _ Disney is p___ with people from all over the world In Chinese,the f_ name is first and the given name is last.横线填什么 The online world is increasingly ( ) the “real” world.A、 emerging with B、 emerging to C、 merging with D、 merging to if it is f_,we can see the moon in the night ,too it is ture that English is changing with the develepment of the world the world is fucking The World Is... 歌词 The world is the world is sold the world is only the world is very