the house is cheap because the earth is a free material

the house is cheap because the earth is a free material The sweater is very cheap because there is a ___ ___ it. 这个空 is the ring cheap? 1.Is this house -----older of the two.2.-------earth moves a 1 For the big house,the price is fairly cheap,but you’ve got we bought a()house in the country because the air there is f Mars is( )the Earth What is a Friend of the Earth? The earth is a h----- blue planet The Earth is a star对吗? The Earth is a star的意思 The earth is a circle是什么意思