Let us consider the earth as a planet _________(revolve)roun

The earth is a h----- blue planet As we all know,the earth is a planet almost covered by water believe me,dear,I love you,just as believe:the earth is roun A solar day is the length of time ____ the earth to revolve a solar day is the length of time____the Earth to revolve on Yesterday the teacher told us the earth _________ round the The earth is the third planet. 1.The Earth is the_________(three)planet. The earth is a planet and the sun is a --- 填什么呢 Earth is a rocky planet ( where )liqui the earth is a planet and it goes around the sun.seven other ____from the moon,the planet earth is a beautiful blue world