_______, what’s your hobby?

I have _______ sugar, so I have to buy some.

—It’s necessary ____ our environment(环境).  —I agree with you.

I decided to write rather than________.

I’m           in any          books.

Our teachers always encourage us        aloud in English class.

He asked his father        .

Linda has been drawing ______.

My aunt has a______son.

The earth moves round the sun, and the moon moves round the earth. When our part of the earth turns__46__ the sun, it is day. When our part of the earth runs away __47__ the sun, it is __48__.

The sun is much __49__ than the moon. But sometimes the moon _50__ bigger than the sun, because it’s much __51_ to the earth.

The sun is very bright. It gives very __52__light. The moon looks quite bright, too, but it doesn’t give any light at all. The light __53_ the moon comes from the sun.

The moon looks much bigger and brighter than the stars, _54__ in fact the stars are much bigger and brighter than the moon. __55__ smaller than the moon because they are farther away from the earth.