How much do you learn about the solar system？The following passage will tell you.
The earth is a planet.It as well as seven1 planets goes around the sun.We2 the eight planets and the sun the solar system.The first planet，3 the sun，is Mercury（水星）.It is 58 million4 from the sun.Venus（金星） is the second planet next to the sun，and5 planet，the earth，is the third.It is 150 million kilometres from the sun.
Jupiter（木星），Saturn（土星），Neptune（海王星） and Uranus（天王星） are all6 than the earth，7 Venus，Mars and Mercury are smaller than the earth.
Animals，trees and humans can only8 on the earth — the other planets in our solar system do not9 air or water.Do any planets in other galaxies have10 ？We don't know about it.
