Scientists are working hard to make _______ possible for people to live on Mars in the future.

We have all pants_____ all colors_____ $18.[ ]

As everybody knows，a person I s，the more things he needs to do tomorrow.

George reads the newspaper every morning. That’shabit.

Avatar (《阿凡达》) is such __________ wonderful science movie that I want to see it __________ second time.