The correct preposition. Mrs Walter has a lovely living room. There is a coffee table 1) in the living room, 2) the sofa. There are some cushions 3) the sofa. There is a window 4) the sofa and a picture 5) the wall, 6) the window. There is a rug 7) the floor, 8) the table. The sofa is 9) two tables. There is one lamp 10) each table. There are two armchairs 11) the room.
We live in the materialistic world where all the things are mostly tangible and have a chemical or biological origin. Yet some phenomena can't be explained from scientific point of view yet but it's the question of the future. If our planet Earth is the result of long and gradual evolution process, thus we know what are pieces for sure. But what heaven stands for it's rather embarassing, it's something we can define as an intangible matter that no one have seen on Earth. Perhaps it exists in other dimensions somewhere in the sky surface.
1) Have they just come back from a school conference in Moscow?
2) Did they hear about a 10-day expedition to the Ugra National Park?
3) This park is located beside the Zhizdra River and has many different trees and plants found in Central Russia, isn't it?
4) Who learned that most school students in Russia study Ecology and take part in conferences and events about modern ecological problems?
5) Can children go to a lot of camps where they can learn to do practical things to take care of nature and help the environment?
6) The aim of the students' expedition was to explore the flora and fauna of their native land and learn more about practical ecology, wasn;t it?
7) Did they learn how to experience nature by using all their senses?
8) Who participated in volunteer work such as cleaning the springs and paths in the forest?
9) Their adventures also taught them a lot of practical lessons about living independently in the middle of the forest, didn't they?
10) What was one of the students' favourite activities?
11) Who really enjoyed their stay at the eco-camp?
12) Do they hope to go back again next year?