Вставьте предлоги (for,without,on,of about,before) в предложения:What do we think________ when we use the words"The world around us"?We see _______ us many things such as large lands and mountains,woods and rivers.We know that ...

Вставьте предлоги (for,without,on,of about,before) в предложения: What do we think________ when we use the words"The world around us"? We see _______ us many things such as large lands and mountains,woods and rivers. We know that there are many seas, lakes and rivers_____the Earth. Water is a source_____ life on the earth.  All living beings are not able to live_____ water. Many rivers and lakes are polluted and cannot be used_____drinking. Заранее спасибо!