跪求一个初二英语，用所给词适当形式填空。

你要的是 完型么？
Even if you are a good high-jumper, you can jump only about seven 1 off the ground. You cannot jump any higher because the earth 2 you hard. The pull of the earth is 3 gravity.

You can easily 4 out the pull of the earth. If you weigh 5 , you will know how 6 gravity is pulling you.

Since there is gravity, water runs downhill. When you 7 a ball into the air, it falls back down. Because of gravity you do not fall off the earth 8 it turns around.

Then, can you get 9 from the earth and go far out into space? Now you can do it, because spaceships have been invented. The spaceship will go so fast that it can get rid of the earth's gravity and 10 you into space.

1. A. foots B. foot C. feet D. feets
2. A. pulls B. push C. make D. hits
3. A. calling B. called C. told D. spoke
4. A. find B. found C. looked D. way
5. A. you B.