4. When they made ready to climb the next ridge(山脊)，they found that their

　　 oxygen had given ______.

3. If they are burned, they give _____ poisonous gases.

2. Both sides argued with reason, and neither would give _____.

1. In those days, he used to give _____ a part of his income to help his friend.

17.　get through　　通过

give 词组

16. get together　　相聚，碰头

15. get rid of　　除掉，去掉

14. get out　　离开，出去

13. get on　上车

12. get off　下来，从...下去