问题
填空题
根据句意及首字母汉语的提示，补全单词。
1. Not getting enough sleep has serious a______ on your health.
2. The a______ marks of math is 123,
3. The a______ of sleep we need is different from person to person.
4. I had s ____ problems.
5. He had no a ____ to support his family.
答案
1. affect 2. average 3. amount 4. sleeping 5. ability
