The earth is       years old.

A. four thousands six hundreds                                      B. four thousand six hundred

C. four thousand and six hundred million                     D. four thousand six hundred millions

I study in High School Affiliated to Southwest University. There are __________ students in our school. Nine ______________ of them are girls.

How do we say the number 110,206?

A．one hundred and ten thousand, two hundred and six.

B．one hundred and ten thousands and two hundreds and six.

C．one hundred and ten thousand and two hundred and six.

D．one hundred, ten thousand, two hundred and six.

The earth is       years old.

A. four thousands six hundreds                                      B. four thousand six hundred

C. four thousand and six hundred million                     D. four thousand six hundred millions

In the universe,there is the earth,the moon,the sun,the stars and all the other things too far away to see.The earth is one of the sun’s  1  ,and the moon is our satellite.The moon is about three hundred and eighty thousand kilometers away 2   the earth ,but it’s our 3 neighbor in space.It 4  more than three days to get there by spaceship No man 5  fathar than the moon ,but spaceship 6  people has reached other planets.
Of  7   the stars ,the sun is the nearest to the earth  8    other stars are even bigger and brighter than the sun.They look small only 9  they are much farther away.You 10  see them in the daytime .But if you go out at night ,you’ll be able to see many of them.