一 We must stop cutting down the trees.

一 I'm afraid you have to wear glasses to help see things ______.

    Once there was a boy named Jimmy. He started drawing when he was three years old, and when he was five he was already very     1 at it. He drew many beautiful and interesting pictures, and many people 2 his pictures. They thought this boy was going to be 3 when he was a little older, and then they were going to 4 these pictures for a lot of money.

    Jimmy's pictures were quite different from other 5, because he never drew on all of the paper. He drew on 6 of it, and the other half was always 7.

    “That's very 8,” everybody said. “No other people have ever done that before”.

    One day, somebody asked him, “Please 9 me, Jimmy. Why do you draw on the bottom (底部) half of your pictures, but not on the top half.”

    “Because I'm small,” Jimmy said, “and my brushes can't 10 very high.”

一 Sorry, Dad. I'll clean the house at once.

一 ______. They often use them to play games instead.