6. Look! A number of children 　　　　(teach) themselves different skills for physical exercises.

5. Students were made ________ (not go) to the public places during their holiday for their safety because of the terrible disease.

4. She______ (sing) that same song so many times. I’m getting sick of it!

3. Andy __________ (argue)with his sister about the computer games when we went to visit him this morning.

2. There _______(be) little space for people to stand in in the future, will there?

1. The gravity on Earth can prevent people from __________(float) away into the sky.

6. __________ 7. __________ 8. __________ 9. __________10.__________

1. __________ 2. __________ 3. __________ 4. __________ 5. __________

10.Students should form good _______(习惯)of getting up early, eating a healthy diet, exercising a lot etc.

9. Jim, never ______(打扰) others when they are working on the problems!