1. He has the most _____________smile, the kind you can only see on a child's face.

2. The Chinese athletes must ______________new techniques to make greater achievements after the 29th Olympic Games.

3. James can ________________ his teacher's speech perfectly.

4. It is ______________for him to get up so early.

5. The scientists _______________ the behavior of the mice after they were given the drug.

6. Climate and weather can affect every ______________ of our lives.

7. The spy was caught in ______________, but he died from wounds the next day.